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Background/Aim: The aims of this study were to clarify optimal type and management of preoperative biliary drainage (PBD) in patients with obstructive jaundice who underwent pancreatoduodenectomy (PD). Patients and Methods: A total of 156 patients with obstructive jaundice who underwent PD were enrolled. We compared clinical variables and postoperative complications between patients who underwent endoscopic retrograde biliary drainage (ERBD) and those who underwent endoscopic nasobiliary drainage (ENBD). Results: All patients underwent PBD, with ERBD in 117 and ENBD in 39. The incidence of infectious complications and clinically relevant pancreatic fistula (CR-PF) were significantly higher in the ERBD group (39% vs. 13%, p=0.012 and 39% vs. 10%, p

Although some studies have reported on the relationship between appendiceal stump closure methods and postoperative complications, there is no fixed method for this procedure. This study aimed to compare treatment outcomes of the existing procedures.We retrospectively analyzed the records of 200 patients who underwent urgent laparoscopic surgeries and investigated whether the difference in the appendiceal stump closure method was a risk factor for surgical site infection. The patients were divided into the Endoloop and endostapler groups, and 45 propensity score-matched patients were included. The treatment outcomes of the two groups were compared.The patients with high body temperature showed significantly developed surgical site infection in multivariate analysis (P = .036). There was no significant difference in the appendix stump methods (Endoloop vs endostapler). Regarding postoperative complications, superficial and deep incisional surgical site infection, organ/space surgical site infection, ileus, and complications of Clavien-Dindo grade IIIa or higher; there was no significant difference between the endoloop and endostapler groups after propensity score matching (P = .725, 1.000, .645 and .557, respectively).By properly using the Endoloop and endostapler according to the severity of inflammation, the Endoloop can be safely performed in many cases. Inexpensive Endoloop as an option for stump closure methods should positively impact medical costs.

The prevalence of colonic diverticular disease has been on the increase in Japan due to an increase in westernized diet and a rapidly aging population. However, solitary cecal diverticulum is rare and considered congenital in etiology. Solitary cecal diverticulitis with calcified fecaliths is even rarer. Herein, we report a case of cecal colon diverticulitis caused by a calcified fecalith in a 38-year-old woman treated with single-incision laparoscopic surgery. To the best of our knowledge, this report describes the first case of cecal colon diverticulitis caused by a calcified fecalith that was successfully treated with single-incision laparoscopic ileocolectomy.

Background Liposarcoma is one of the most common soft tissue sarcomas, but is extremely rarely found in the esophagus. There have been no reports of esophageal liposarcoma together with superficial carcinoma of the esophagus. Here, we report a patient who underwent complete resection of esophageal liposarcoma with carcinoma via a cervical approach. Case presentation A 66-year-old man was diagnosed with an esophageal tumor 11 years ago, but he left it untreated. He presented to our hospital with progressive dysphagia and appetite loss since the previous year. Esophagogastroduodenoscopy (EGD) showed a large pedunculated submucosal tumor (SMT) originating at the esophageal entrance, extending to the gastroesophageal junction. Additionally, there was a superficial carcinoma on the surface of the SMT, 30 cm from the incisor teeth. Three-dimensional computed tomography (3D-CT) showed a giant elongated intraluminal tumor extending downwards from the cervical esophagus. We diagnosed a giant esophageal polyp accompanied by a superficial carcinoma and performed tumor resection via a cervical approach. The excised specimen consisted of a 23.0 × 8.5 cm polypoid mass. The final diagnosis by histopathological and immunohistochemical examination was well-differentiated liposarcoma and esophageal squamous cell carcinoma. He was discharged on postoperative day 14 with drastic improvement in his swallowing ability. Conclusion We reported an extremely rare case of esophageal liposarcoma together with esophageal squamous cell carcinoma that was successfully resected through a small cervical incision.

Although non-small cell lung cancer can metastasize to any part of the body, metastasis to the gallbladder is extremely rare. We present a case of acute cholecystitis caused by gallbladder metastasis from non-small cell lung cancer. A 66-year-old man diagnosed with primary stage IV T4N3M1b non-small cell lung cancer was admitted to our hospital to receive chemotherapy, during which he presented with right upper abdominal pain. Abdominal contrast-enhanced computed tomography showed an enhanced mass at the neck of the gallbladder and gallbladder distension with obvious wall thickening. Acute cholecystitis caused by obstruction of the gallbladder neck by malignancy was suspected. Open cholecystectomy, extrahepatic bile duct resection, and Roux-en-Y choledochojejunostomy were performed. Pathological and immunohistochemical examinations revealed gallbladder metastasis originating from non-small cell lung cancer. In conclusion, when a patient with lung cancer presents with acute cholecystitis, the rare possibility of gallbladder metastasis should be considered.

Background. The practice of leaving the abdomen open after an emergency laparotomy has gained increasing popularity recently. Negative pressure wound therapy (NPWT) is known as an effective technique in the management of an open abdomen (OA). A new device, the ABThera™ Open Abdomen Negative Pressure Therapy System (KCI USA, San Antonio, TX, USA), was specifically designed to achieve a temporary abdominal closure (TAC) in the management of an OA. This study was aimed at presenting a successful experience of treating a case of abdominal wall necrosis caused by a perforated ascending colon using the ABThera System. Case Presentation. A 66-year-old man was admitted to our hospital with complaints of severe pain in the abdomen. On admission, abdominal contrast-enhanced computed tomography (CT) showed fluid collection, an air pocket in the subcutaneous fat layer of the abdominal wall, and edematous changes in the adipose tissue in the peritoneum and abdominal wall. Based on a diagnosis of peritonitis resulting from a perforated ascending colon, emergency surgery was performed. A right hemicolectomy, ileostomy construction, and debridement of the necrotic tissues were performed. However, necrotizing fasciitis rapidly spread; therefore, more necrotic tissue was debrided in a second operation. The abdominal wall defect was left open, and the ABThera System was used in the management of the OA; this device promoted wound healing. A reduction was observed in the size of the open wound with visible granulation tissue. The defect was finally covered with a mesh split-thickness skin graft and anterolateral thigh flap. Conclusions. In the management of a case of a massive wound with infection, it can be of great benefit to treat the wound with NPWT initially to decrease its size. The ABThera System could facilitate early and safe management of an OA by surgeons.

There is a wide variety of vessel types in the transverse colon region. Among them, it is very rare that the accessory middle colonic artery(A-MCA)is branched from the splenic artery. We found a transverse colon cancer. The dominant vessel of the cancer was the A-MCA branched from the splenic artery. This vessel type was confirmed by preoperative 3D-CT. We performed a laparoscopic left hemicolectomy for the cancer. In this study, we report a case of safe laparoscopic surgery in which we separate the A-MCA branched from the splenic artery using the preoperative 3D-CT image.

Background Cutaneous metastases of colorectal cancer (CRC) are rare, occurring in 0.7% to 5% of cancer patients. Furthermore, the molecular subtypes of cutaneous metastasis of CRC are unclear. Here, we present a rare case of cutaneous metastasis of high-frequency microsatellite instability (MSI-high)/BRAFV600E-mutant cecum cancer. Case presentation A 77-year-old woman presented at the outpatient clinic with a subcutaneous mass on her left back. An excisional biopsy was performed and metastatic cutaneous adenocarcinoma was diagnosed. A computed tomography scan of the thorax and abdomen showed thickening of the cecum wall, the presence of pericolic lymph nodes, multiple masses in the liver, and a single nodule in the right lung. Right colectomy with D2 lymphadenectomy and functional end-to-end anastomosis was performed because of the almost-complete intestinal obstruction. The expression of KRAS wild type, BRAFV600E mutation, and MSI-high was detected in the cecum cancer using molecular pathological examination. She received chemotherapy with XELOX + BEV regimen (capecitabine + oxaliplatin + bevacizumab). After four administrations, a computed tomography scan showed reduction of distant metastases, which suggested partial response. Conclusions We encountered a rare case of cutaneous metastasis of MSI-high and BRAFV600E-mutant cecum cancer. In the future, it will be necessary to accumulate more cases to identify clinical features and more effective treatments for CRCs with cutaneous metastasis.

Highlights • Gastric heterotopic pancreas (HP) rarely expands due to inflammation or malignant transformation. • Enlarged gastric HP caused by retention cysts is a rare case. • Symptomatic enlarged gastric HP should be resected for histological diagnosis., Introduction Gastric heterotopic pancreas (HP) is usually asymptomatic and benign; however, it may become evident when it is complicated by pathological changes such as inflammation, bleeding, and malignant transformation. Presentation of case A 43-year old man was diagnosed with gastric HP 18 years prior suffered a haemorrhage from the enlarged gastric HP with multiple cystic lesions. Although endoscopic ultrasonography–guided fine needle aspiration showed no malignancy, he underwent a partial gastrectomy for diagnosis and treatment. Postoperative histological findings revealed ectopic pancreatic tissue with retained cysts that consisted of dilated pancreatic ducts without malignancy. Discussion This is a first report of enlarged gastric HP due to the expansion of retained cysts. Gastric HP is rarely enlarged by pathological changes including inflammation, retention cysts, or malignant neoplasms. Conclusion Symptomatic enlarged gastric HP should be respected and further examined histologically to ensure diagnostic accuracy.

Acute mesenteric ischemia (AMI) is a rare life-threatening condition that causes intestinal necrosis. Prompt intervention is essential to mitigate high mortality. In this report, we describe a case of AMI where precise diagnosis using indocyanine green (ICG) imaging to confirm sufficient bowel perfusion and viability, helped in preventing intestinal resection.A 91-year-old male was diagnosed with AMI associated with superior mesenteric artery thrombosis using computed tomography and underwent exploratory laparotomy. Under white light, there was no outward evidence of small-bowel necrosis. Hence, ICG was used to confirm adequate bowel perfusion and viability. The operation was terminated without resection of the small intestine. When anticoagulation therapy was initiated postoperatively, the thrombus subsided. Although the patient had no subsequent recurrence, he died of dysphagic pneumonia two months after the surgery.Physicians often choose to perform trial laparotomy to diagnose intestinal ischemia due to AMI. However, it was difficult to assess the viability of the entire intestinal tract using white light alone, and the introduction of ICG in the evaluation of intestinal perfusion will facilitate the identification and objective evaluation of the intestinal ischemic zone. There have been few reports on application of fluorescent-guided determination of the viable zone of the small intestine, which will help surgeons to make precise diagnosis.This case demonstrates ICG fluorescence imaging as a useful method for objectively assessing bowel viability.

The case involved a female in her 70s. Six years prior, she had undergone an abdominoperineal rectal resection for rectal cancer. Local recurrence was observed during follow-up so preoperative chemoradiotherapy was performed to shrink the tumor, followed by a total pelvic exenteration, bilateral ureterocutaneous fistula, and perineal reconstruction with a gracilis myocutaneous flap. She was discharged from hospital 39 days following surgery with no major complications. We herein report on a case of a good postoperative course due to surgery including a total pelvic exenteration and perineal reconstruction with a gracilis myocutaneous flap for postoperative local recurrence.

Case 1: A 51-year-old man with advanced gastric cancer and peritoneal metastasis was referred to our hospital. He received fourth-line chemotherapy with nivolumab, but it became PD. Next, he received S-1 plus docetaxel therapy as fifth- line therapy. After 2 courses of S-1 plus docetaxel, erythema and blisters appeared on his limbs, with erosions of the oral mucosa and penis. We diagnosed Stevens-Johnson syndrome(SJS)based on the clinical and pathological findings. He received steroid treatment, but the cutaneous symptoms persisted; therefore, it was impossible to continue the chemotherapy because of the SJS. Case 2: A 75-year-old woman with recurrence of peritoneally disseminated gastric cancer received third-line chemotherapy with nivolumab. After 1 course of nivolumab, erythema appeared on her body and limbs, with erosion of the lips and oral mucosa. We diagnosed SJS based on the clinical findings. She received steroid treatment, but the cutaneous symptoms persisted; therefore, it was impossible to continue chemotherapy because of the SJS. It should be noted that the onset of serious irAEs, such as SJS, might make continuous chemotherapy difficult.

The clinical efficacy of nivolumab has been shown as a third-line treatment for advanced gastric cancer; however, nivolumab sometimes causes immune-related adverse events(irAEs). We retrospectively examined the clinical features and influence on treatment in cases of irAEs after nivolumab treatment.We retrospectively examined 43 patients who received nivolumab treatment at our institution between October 2017 and December 2019.The incidence of irAEs was 23.2%(10/43), and Grade 3 or higher irAEs included interstitial pneumonia, hypoadrenalism, Stevens- Johnson syndrome(SJS), and type 1 diabetes. Three patients showed long-term disease control after irAE onset. Meanwhile, SJS prevented patients from continuing treatment for gastric cancer.Nivolumab is effective in some patients with gastric cancer, while irAEs made subsequent treatment difficult. Trifluridine/tipiracil or irinotecan are also known to be effective as therapeutic drugs after third-line treatment for gastric cancer in addition to nivolumab; therefore, the choice of the third-line drug and management of irAEs owing to individual cases are considered desirable.Long-term efficacy is expected with nivolumab, but it may be necessary to recognize that the onset of serious irAEs might make subsequent treatment difficult.

Previous reports have demonstrated that repeated surgical resections of resectable hepatic and pulmonary metastases from colorectal cancer contribute to a better prognosis. We retrospectively assessed the outcomes of 19 patients with colorectal cancer who underwent repeated resections of hepatic and pulmonary metastases between February 2007 and February 2017. The median observation period was 69.9 months, and 26 liver and 27 lung resections were performed. The cumulative 5-year survival rates after resection of the last metastasis was 75.1% and the median disease-free survival after resection of the last metastasis was 34.7 months. Although 7 patients showed recurrence and 4 patients died, 7 patients exhibited long-term survival. Univariate analysis revealed that simultaneous liver and lung metastases were significantly predictor of poor prognosis(p=0.039). Progress of the patients in the present study were comparable to those in previous reports. Therefore, we propose that repeated surgical resection of hepatic and pulmonary metastasis from colorectal cancer could improve patient prognosis. Further studies should examine to identify more accurate prognostic factor with large series.

The splenic artery and vein are important to the remnant stomach after distal gastrectomy(DG). Hence, total gastrectomy is recommended when performing gastrectomy and distal pancreatectomy(DP)with splenectomy(S). In the present case, a man in his 70s was diagnosed with early gastric cancer. Abdominal CT detected a dilated main pancreatic duct. Chronic pancreatitis was suspected, but malignancy could not be completely ruled out. Thus, DG with Roux-en-Y reconstruction and DP with S were performed simultaneously. The remnant gastric blood flow was evaluated with intraoperative indocyanine green(ICG)fluorography and the blood flow was confirmed. Finally, the remnant stomach was preserved. The postoperative course was uneventful, except for the occurrence of anastomosis edema. This result suggests that ICG fluorescence is useful to evaluate remnant gastric blood flow and that it may be possible to perform DG and DP with S simultaneously depending on the case.

BACKGROUND/PURPOSE Grade C postoperative pancreatic fistula (POPF), as defined by International Study Group of Pancreatic Fistula (ISGPF), is the most life-threatening complication after pancreatoduodenectomy (PD). This study aims to evaluate risk factors for Grade C POPF after PD. METHODS This is a prospective, multicenter study based in Japan and Taiwan. Between December 2014 and May 2017, 3022 patients were enrolled in this study and 2762 patients were analyzed. We analyzed risk factors of Grade C POPF based on the updated 2016 ISGPF scheme (organ failure, reoperation, and/or death). RESULTS Among 2762 patients, 46 patients (1.7%) developed Grade C POPF after PD. The mortality rate of the 46 patients with Grade C POPF was 37.0%. On the multivariate analysis, six independent risk factors for Grade C POPF were found; BMI ≥ 25.0 kg/m2 , chronic steroid use, preoperative serum albumin

Pembrolizumab and nivolumab are anti-programmed death receptor-1(PD-1)antibodies. The use of pembrolizumab for unresectable or metastatic cancer with microsatellite instability-high(MSI-High)has been recently approved. However, there were few clinical reports on MSI in gastric cancer.We examined the clinicopathological features and MSI for 37 patients who underwent chemotherapy for unresectable gastric cancer in January 2019.MSI-High was observed in 3 patients(8.1%). Among the MSI-High patients, there was a tendency towards older age, female sex, undifferentiated type, distal-located lesions and lymphatic vessel invasions, but the differences were not significant. Eleven patients underwent chemotherapy with nivolumab, 4 of them had partial response(PR). Three out of the 4 patients (75%)were MSI-High.These results suggested that anti-PD-1 antibody could be effective as a secondary treatment for unresectable or metastatic gastric cancer among MSI-High patients.

This is a first report of gastrectomy after nivolumab immunotherapy. We describe a case in an elderly woman with gastric cancer diagnosed with cT4bN3M1(LYM), cStage ⅣB disease. Although she was administered 2 courses of SOX chemotherapy as the primary treatment, she could not continue the treatment to due to bone marrowsuppression. The second-line treatment was weekly PTX therapy, but she experienced Grade 3 neutropenia and thrombocytopenia in the first course and could not continue treatment. Nivolumab as the next treatment was effective but was discontinued for suspected druginduced pneumonia. During that time, tumor hemorrhage occurred and we performed total gastrectomy. Postoperatively, nivolumab chemotherapy was resumed. There were no adverse events and the patient has had a continued partial response for 30 courses. Gastrectomy was necessary in this case, allowing observation of the pathological findings of this highly effective case.

Background Prospective studies are needed to understand the safety and feasibility of laparoscopic pancreatectomy. The aim of the present study was to describe laparoscopic pancreatectomy currently undertaken in Japan, using a prospective registration system. Methods Patient characteristics and planned operations were registered preoperatively, and then the performed operation and outcomes were reported using an online system. Collected data were also compared between institutions based on their level of experience. This study was registered with UMIN000022836. Results Available data were obtained from 1,429 patients at 100 Japanese institutions, including 1,197 laparoscopic distal pancreatectomies (LDPs) and 232 laparoscopic pancreatoduodenectomies (LPDs). The rates of completion for planned operations were 92% for LDP and 91% for LPD. Postoperative complication rates after LDP and LPD were 17% and 30%, and 90-day mortality rates were 0.3% and 0.4%, respectively. Shorter operation time, less blood loss, and lower incidence of pancreatic fistula were observed in institutions experienced in LDP. A higher rate of pure laparoscopic procedure and shorter operation time were noted in institutions experienced with LPD. Conclusion LDPs and LPDs are performed safely in Japan, especially in experienced institutions. Our data could support the next challenges in the field of laparoscopic pancreatectomy.

Highlights • SANT displayed a rapid growth in size from 20 mm to 70 mm during 3 years after adrenalectomy. • Splenectomy was performed by hand assisted laparoscopic surgery (HALS). • Corticosteroids might be useful for treating SANT., Introduction Sclerosing angiomatoid nodular transformation (SANT) is a rare benign lesion with an unknown natural history and pathogenesis. So far fewer than 100 cases were documented, but detailed incidence and prevalence are unknown. Presentation of case We report a case of SANT of the spleen in a 37-year-old man that showed rapid growth after adrenalectomy for primary aldosteronism. Computed tomography showed a nodule in the spleen that increased in size from 2.0 cm to 7.0 cm during 3 years of observation. Discussion This case is reported because data regarding growth rates and natural history of these lesions are limited and few cases have been reported to show the rapid growth progression seen in this case. Conclusion Decreases in glucocorticoid concentrations following adrenalectomy may have contributed to the rapid growth of SANT of the spleen, because SANT is considered to be related to immunoglobulin G4-associated disease.

text, 紀要論文 / Departmental Bulletin Paper

Background: Postoperative pancreatic fistula (POPF) is a harmful complication after pancreaticoduodenectomy (PD). Grade C POPF, as defined by International Study Group of Pancreatic Fistula (ISGPF), is the most life-threatening complication. This study aims to evaluate risk factors for Grade C POPF after PD. Methods: This is a prospective, multicenter collaboration study based in Japan and Taiwan. Between 2014 and 2017, 3,022 patients were enrolled in this study and 2,762 patients were analysed after 260 patients were excluded (discontinuation of protocol treatment: n=241, incomplete information: n=19). We analysed risk factors of Grade C POPF based on the 2005 ISGPF scheme (sepsis, organ dysfunction, haemorrhage, reoperation, and/or death) and then separately by the updated 2016 ISGPF scheme (organ failure, reoperation, and/or death). Findings: Among 2,762 patients that underwent PD, 93 patients (3∙4%) developed Grade C POPF as defined by 2005 ISGPF and 46 patients (1∙7%) developed Grade C POPF as defined by 2016 ISGPF. We found eight independent risk factors associated with Grade C POPF as defined by 2005 ISGPF on multivariate analyses; male sex, body mass index (BMI) ≥25∙0 kg/m2, chronic steroid use, preoperative serum C-reactive protein ≥1∙0 mg/dL, soft pancreas, main duct size

The indication of hepatectomy for liver metastasis from gastric cancer has not been definitely established.Among 12 cases that were performed hepatectomy for liver metastasis from gastric cancer in our institute from 2008 to 2016, we analysed prognosis and the benefit of surgical resection.The overall 5-year survival rates of all cases were 42.3%, and median survival time was 2 years. The overall survival rates of synchronous metastasis was 59.3%and of metachronous metastasis was 0%. Recurrence rate of all cases within 1 year was 75%. There was no long-term survivor for metachronous metastasis because of its early recurrence though it was solitary liver tumor.We should carefully indicate surgical resection for liver metastasis from gastric cancer.

The patient was a 77-year-old man with a 4.0 cm hepatictumor in hepaticsegment 4. Plain computed tomography(CT) showed the tumor with low density. On dynamicexamination, the tumor showed heterogeneous enhancement during the arterial phase. Magneticresonanc e imaging showed the tumor as a low intensity area in the hepatobiliary phase in hepatic segments 4, 6, and 8. A month later, CT showed an enlarged tumor in segment 4 measuring 7.0 cm. We diagnosed the tumor as primary liver cancer and suspected it to be hepatocellular carcinoma(HCC)preoperatively. We performed extended medial segmentectomy and partial hepatectomy of segment 6. The histopathological diagnosis was mixed HCC and primary hepatic neuroendocrine carcinoma(PHNEC). Three months after hepatectomy, the patient died of multiple intrahepatic recurrences. In most of the reported cases of mixed HCC and PHNEC, only the PHNEC component has been detected in the biopsy of the metastatic lesions. This fact might suggest that PHNEC has a higher proliferative activity and malignant potential than HCC. Standard treatment for mixed HCC and PHNEC is unclear; therefore, development of multidisciplinary treatment strategies combining surgical treatment and systemic chemotherapy is required.

A woman approximately 70-years-old with duodenal invasive advanced gastric cancer was referred to our hospital. Meta- stasis to lymph node(LN)No.13 was suspected based on FDG/PET-CT. For better curability, we selected neoadjuvant chemotherapy( NAC)with S-1 plus oxaliplatin(SOX therapy). After 3 courses of SOX, distal gastrectomy with D2(+No.13) lymphadenectomy was performed. Upon pathological evaluation, no viable cancer cells were found in the primary tumor, but viable cancer cells were identified in LN No.6 and 13. LN No.13 was defined as M1 according to the current Japanese classification of gastric carcinoma. On the other hand, the 2014 Japanese gastric cancer treatment guidelines(ver. 4)mentioned that D2(+No.13)lymphadenectomy may be an option in potentially curative gastrectomy for tumors invading the duodenum. This case suggests that No.13 lymphadenectomy is necessary as a curative operation for duodenal invasive advanced gastric cancer, even if the primary tumor has achieved pCR after NAC.

We evaluated the clinical outcome and assessed the indication of hepatectomy for liver metastasis of duodenal ampullary cancer. We analyzed 42 cases of duodenal ampullary cancer and 4 patients who underwent hepatectomy for liver metastasis. Eleven(50%)of 22 cases with recurrence of duodenal ampullary cancer had liver metastasis. Four cases were solitary and 7 cases were multiple. Four patients underwent hepatectomy didn't had other organ metastasis. Three of 4 cases with solitary liver metastases and one of 7 cases with multiple metastasis underwent hepatectomy. One of 3 cases of solitary liver metastasis died of lung and bone metastases without liver recurrence 2 years and 8 months after hepatectomy. Other 2 cases are long surviving without recurrence 8 years and 8 months and 4 years and 9 months after hepatectomy respectively. One case of multiple liver metastases died of early liver recurrence 10 months after hepatectomy. The indication of hepatectomy for liver metastasis was restrictive. However the prognosis of patients with solitary liver metastasis was relatively favorable. Therefore hepatectomy could be indicated for solitary liver metastasis of duodenal ampullary cancer.

Anaplastic carcinoma spindle cell type is an extremely rare disease and its prognosis is very poor. We herein report a case of anaplastic carcinoma spindle cell type of the pancreas. A 50-year-old man complaining of epigastralgia was found to have a pancreatic body-tail tumor by abdominal US and CT studies. Abdominal CT showed an irregular poorly-enhanced 33mm tumor containing a cystic component. ERCP revealed the main pancreatic duct was cut off at the tumor. Cytology of the pancreatic fluids did not indicate malignancy. A pancreatic tumor with a cystic component similar to pancreatic neoplasms containing cystic degeneration or a mass-forming pancreatitis concomitant with pancreatic pseudocyst was suspected. Therefore, we performed distal pancreatectomy. Histological findings showed the center of the tumor was severely necrotized and oval or spindle dysplastic cells proliferated around the peripheral area. According to the immunohistological staining pattern, the patient was diagnosed as having anaplastic carcinoma spindle cell type. He was administered oral S-1 for 6 months and is now recurrence-free, surviving for 15 months after pancreatectomy. Reports of long-term survival cases that also demonstrated R0 resection should be indicated in the treatment of anaplastic carcinoma spindle cell type despite the poor prognosis.

A 29-year-old woman who underwent the Fontan procedure at 10 years of age had an incidental finding of liver masses on abdominal ultrasonography. Subsequent gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid magnetic resonance imaging showed a 15 mm hypervascular mass with washout in the hepatobiliary phase in liver segment 4 (S4), and an 18 mm hypervascular mass without washout in the hepatobiliary phase in liver segment 2 (S2). The S2 liver mass was pathologically diagnosed to be a regenerative nodule by an ultrasound-guided needle biopsy, and the S4 liver mass was pathologically diagnosed as a poorly differentiated hepatocellular carcinoma after partial hepatectomy.

In cases of paroxysmal nocturnal hemoglobinuria (PNH), attention must be paid to potential complications such as thrombosis and hemolysis due to perioperative stress and infection from complement activation. Here we present the case of a 61-year-old Japanese woman with PNH. We made the diagnosis of PNH when she was 28 years old, and we administered repeated steroid medication and erythrocyte transfusion. The patient's cholecystocholedocholithiasis with a cholecystoduodenal fistula was diagnosed based on a survey of the right hypochondriac pain. We performed endoscopic nasobiliary drainage (ENBD) for the prophylaxis of perioperative infection, plus a cholecystectomy and fistulectomy. There were no complications, including hemolysis attack, infection, thrombosis with irrigation erythrocyte transfusion, steroid cover, or the need for heparin administration during the perioperative period. The reduction of the complement activation is necessary in the perioperative management of PNH patients. The prevention of the development of acidosis and hypoxemia, the selection of washed red blood cells, steroid use, appropriate infection measures and thrombosis prophylaxis are all important for the prevention of complications.

Highlights • Adrenal cortical carcinoma (ACC) is rare, often recurring, and has a poor prognosis. • Surgery remains the optimal treatment for ACC, due to chemotherapy’s ineffectiveness. • Our patient developed 2 liver metastases after right adrenalectomy (1.5 and 4 years). • Therefore, complete surgical resection should be considered in similar cases., Introduction Adrenal cortical carcinoma (ACC) is a very rare type of tumor that generally has a poor prognosis. Little has been reported on repeated liver resections with recurrent metastasis still confined to the liver. In this report, we describe a case of functioning ACC in a 65-year-old woman with 2 liver metastases of the ACC (at 1.5 and 4 years) after the right adrenalectomy. Presentation of case A 65-year-old woman was referred to our hospital based on a suspicion of hyperaldosteronism. Abdominal computed tomography revealed a lesion at the right adrenal gland; therefore, we performed right adrenalectomy and subsequently diagnosed the lesion as ACC. However, follow-up computed tomography at 1.5 and 4 years after the right adrenalectomy revealed liver metastasis of ACC; liver resection was performed for both metastases. Discussion Complete surgical resection is the established approach for the treatment of ACC. The prognosis of ACC is usually dismal, and recurrence rates of up to 85% have been reported. However, the appropriate treatment for recurrent ACC is not well established, and the effectiveness of other modalities, such as chemotherapy and radiotherapy, is not proven. Therefore, surgical resection may currently be the most appropriate treatment modality, as the patient achieved a disease-free interval of 2.5 years after the first liver resection. Conclusion In selected patients with recurrent or metastatic ACC, resection is likely to be associated with prolonged survival. However, a full cure is generally not achievable, and a multidisciplinary approach is likely needed to achieve long-term disease-free status and survival.

The patient was a 49-year-old woman with advanced gastric cancer.CT and PET-CT revealed para-aortic lymph node metastases.She was diagnosed with Stage IV T4aN3M1(LYM)and underwent neoadjuvant chemotherapy with S-1 plus CDDP.After 3 courses, both the tumor and para-aortic lymph node metastases decreased in size.Because radical resection was considered possible, she underwent distal gastrectomy with D3(D2+No.1 6a2-b1)dissection and Roux-en-Y reconstruction. Histopathological findings revealed the cancer was Stage I B(yp T1b N1)with the disappearance of cancer cells in the para-aortic lymph nodes.She was discharged on POD 32.She underwent adjuvant chemotherapy with S-1 and was followed up for 3 years with no recurrence.Para -aortic lymph node metastases are factors predicting a poor outcome; however, when neoadjuvant chemotherapy is effective, long-term survival can be expected from gastrectomy with curative PAND.

We report a 5-year surviving patient with unresectable gall bladder carcinoma treated with gemcitabine(GEM)-based chemotherapy. A 64-year-old man was diagnosed with unresectable gall bladder carcinoma with peritoneal dissemination based on laparotomy findings. Two months later, he started to receive GEM chemotherapy. Twelve months after surgery, the patient chose to suspend GEM treatment. One year and 10 months later, multiple lung metastases appeared and GEM was restarted in combination with UFT. Although the primary lesion and lung metastases gradually progressed, the patient maintained a good quality of life. After 3 years and 2 months, chemotherapy was changed to GEM plus S-1 because of progressive disease. Five years and 2 months after surgery, his condition was complicated by a secondary pneumothorax, and the patient received home oxygen therapy. Five years and 8 months after surgery he died of respiratory distress caused by the progression of lung metastases. Even in the case of unresectable advanced gall bladder carcinoma, effective chemotherapy could improve quality of life and prolong survival.

A man in his 60s underwent gastrectomy to treat gastric carcinoma. Approximately 2.5 years after the surgery, he was admitted to the hospital because of abdominal pain. He was diagnosed with obstruction of the transverse colon due to a colon tumor. A stent was placed to treat the obstruction and avoid oncologic emergency. Biopsy results and imaging showed that the patient did not have colon cancer, but his previous gastric cancer had disseminated peritoneally. Chemotherapy was selected as treatment for recurrent gastric cancer. After chemotherapy, the patient underwent colectomy with removal of the stent. His postoperative course was good, and he was discharged from hospital without complications. The patient received additional chemotherapy. We encountered a case of colon obstruction due to peritoneal dissemination of gastric cancer that was successfully treated using a metallic colorectal stent. Colon stenting for malignant bowel obstruction is useful to avoid oncologic emergencies. However, there is no evidence at this time that long-term placement of a stent is safe. The decision to remove or retain the stent should be made upon carefully considering the condition of the patient and progression of the disease.

The risk of perforation following endoscopic resection is high. We analyzed the outcome of partial duodenectomy and discussed the therapeutic strategy for duodenal mucosal tumor(DMT).We analyzed 19 cases who have undergone endoscopic resection, and 11 cases who have undergone partial duodenectomy for DMT in our institute since 2007. We divided them into the first period(ESD actively indicated)and late period(ESD carefully indicated according to the alteration of indication of ESD for DMT in 2013)groups.In the first period, all 17 cases initially underwent endoscopic resection and 4 cases were complicated by perforation. On the other hand, in the late period, 6 of 12 cases initially underwent endoscopic resection and 1 case was complicated by perforation. Emergent partial duodenectomy was performed with additional resection in the perforation cases. There were no complications associated with surgery, and all 29 cases achieved curative resection, based on the histology results.We can safely indicate endoscopic resection for DMT with surgical back-up and cooperation with the endoscopic internal department.

Multidisciplinary therapy is necessary to prevent recurrence of advanced rectal cancer and advanced cancer with metastases. Here we report a case of long-term survival of a patient with advanced rectal cancer with multiple liver metastases. An 80's woman had previously undergone both Hartmann's operation and a partial hepatectomy for advanced rectal cancer with multiple liver metastases. A year after chemotherapy, a CT scan revealed multiple liver metastases. Thus, we performed partial liver resection. After another round of chemotherapy, a CT scan revealed lung metastases and local recurrence of the rectal cancer; therefore, we performed partial lung resection and a Miles operation. These procedures were conducted 4 years after her first operation. The following year, PET-CT revealed a mediastinum lymph node metastasis; consequently, we performed radiation therapy. New lung metastases and local recurrences of rectal cancer were identified after the radiation therapy; thus, we resumed the therapy, including a molecular targeting drug. Although the patient is in a tumor-bearing state, she is still alive 10 years after her first operation.

We report a case of pancreatic cancer showing R0 resection after resection of the portal vein(PV)following preoperative chemoradiotherapy. A 71-year-old woman was admitted to our hospital with back pain. We diagnosed the patient with pancreatic cancer using computed tomography scan and fine-needle aspiration biopsy. Because the tumor directly invaded the PV, we diagnosed it as a borderline resectable locally advanced pancreatic cancer. Radiation therapy(40 Gy/20 Fr)was administered with S-1 monotherapy(120 mg/body/day on days 1-5 and days 8-12). After the treatment, the main tumor was stable without distant metastasis. Therefore, we performed pancreaticoduodenectomy with resection of the PV. Pathological examination confirmed negative margin status. The patient was healthy and showed no sign of recurrence eight months after surgery.

Aim To investigate changes over time in, and effects of sealing technology on, milk test results following pancreatectomy. Methods From April 2008 to October 2013, 66 pancreatic resections were performed at the Iwakuni Clinical Center. The milk test has been routinely conducted at the institute whenever possible during pancreatectomy. The milk test comprises the following procedure: A nasogastric tube is inserted until the third portion of the duodenum, followed by injection of 100 mL of milk through the tube. If a chyle leak is present, the patient tests positive in this milk test based on the observation of a white milky discharge. Positive milk test rates, leakage sites, and chylous ascites incidence were examined. LigaSure™ (LS; Covidien, Dublin, Ireland), a vessel-sealing device, is routinely used in pancreatectomy. Positive milk test rates before and after use of LS, as well as drain discharge volume at the 2(nd) and 3(rd) postoperative days, were compared retrospectively. Finally, positive milk test rates and chylous ascites incidence were compared with the results of a previous report. Results Fifty-nine milk tests were conducted during pancreatectomy. The positive milk test rate for all pancreatectomy cases was 13.6% (8 of 59 cases). One case developed postoperative chylous ascites (2.1% among the pancreatoduedenectomy cases and 1.7% among all pancreatectomies). Positive rates by procedure were 12.8% for pancreatoduodenectomy and 22.2% for distal pancreatectomy. Positive rates by disease were 17.9% for pancreatic and 5.9% for biliary diseases. When comparing results from before and after use of LS, positive milk test rates in pancreatoduodenectomy were 13.0% before and 12.5% after, while those in distal pancreatectomy were 33.3% and 0%. Drainage volume tended to decrease when LS was used on the 3(rd) postoperative day (volumes were 424 ± 303 mL before LS and 285 ± 185 mL after, P = 0.056). Both chylous ascites incidence and positive milk test rates decreased slightly compared with those rates from the previous study. Conclusion Positive milk test rates and chylous ascites incidence decreased over time. Sealing technology may thus play an important role in preventing postoperative chylous ascites.

CT，MRIでは，肝，胆嚢，大腸，十二指腸，膵頭部を圧排する18×10cmの巨大多房性嚢胞性腫瘍を認めた．腫瘍内部は不均一に造影され，胃壁に接して充実性の部分を認めた．上腹部内視鏡検査では粘膜面に異常なく，血管造影検査では胃大網動脈が腫瘍への栄養血管と考えられた．以上より，胃，大網由来のgastrointestinal storomal tumor（以下GIST）や，悪性線維性組織球症（malignant fibrous histiocytoma:以下MFH）などの腹部軟部腫瘍などを鑑別に挙げるも診断に至らず，手術を施行した．腫瘍は胃壁より発生しており胃部分切除を施行した．腫瘍は22×13×10cm，965gと巨大であった．病理検査では紡錘形細胞や卵円形細胞の交錯する増殖を認め，免疫染色ではc-kit陽性，CD34陽性であり胃GISTと診断した．巨大嚢胞化胃GISTの報告は散見されるが径20cm以上と巨大化することはまれであり，文献的考察を加え報告する．

33歳，男性．小学生時より先天性アンチトロンビンIII（以下，AT-III）欠乏症を指摘されている．2009年1月に肺動脈塞栓症，両下肢静脈血栓症にて他院で入院加療後，ワーファリンを投与されるも同年8月に自己判断で中止していた．同年11月腹痛にて受診，腹膜刺激徴候を認め，CTにて上腸間膜静脈，門脈，脾静脈に血栓，および回腸に虚血の所見を認め，血中AT-III活性が46％と低値であり，先天性AT-III欠乏症に合併した上腸間膜静脈血栓症による小腸壊死と診断し緊急手術を施行した．壊死腸管含め回腸を120cm切除し回腸人工肛門を造設し抗凝固療法にて軽快した．術後3カ月に人工肛門閉鎖術施行し，ワーファリン継続にて静脈血栓症の再燃は認めていない．先天性AT-III欠乏症の上腸間膜静脈血栓症合併には，迅速な外科治療の適応判断，周術期の適切な抗凝固療法や再発予防などが重要である．

The aim of this study was to evaluate the prognostic factors for intrahepatic recurrence of hepatocellular carcinoma (HCC) after curative resection. Of 297 patients with HCC who underwent curative resection between 1998 and 2007, 145 had intrahepatic recurrence, and 125 of these were enrolled in this study. We analyzed the relationships between overall survival after HCC recurrence and 20 variables at initial hepatectomy and recurrence. Recurrent HCC was treated by repeat hepatectomy (Re-Hr, n = 29), radiofrequency ablation (RFA, n = 58), or transarterial chemoembolization (TAE, n = 38). Complete tumor control (CTC) by Re–He and RFA was selected for 70% of patients. RFA-treated patients had more tumors, smaller tumors, and poorer liver function at recurrence than the Re-Hr group. The overall 1-, 3-, and 5-year post-recurrence survival rates (SR) were 93.1, 66.8, 58.1%; 94.7, 75.1, 48.3%; and 80.1, 22.5, 0%, respectively, in the Re-Hr, RFA, and TAE groups. The SR was better for Re-Hr and RFA than for TAE (p

Autonomic nerve preservation in a gastrectomy for gastric cancer improves the postoperative quality of life. We retrospectively examined the survival of patients treated by an autonomic nerve-preserving gastrectomy in comparison to the survival of the patients treated by a conventional gastrectomy.The survival of 385 patients treated by an autonomic nerve-preserving gastrectomy for clinical early gastric cancer (the ANP group) was compared with that of 285 patients treated by a conventional gastrectomy (non-ANP group).Among the ANP group, the numbers of patients with tumor invasion to the mucosa, submucosa, and muscularis propria were 210, 166, and 9, respectively, whereas the numbers of patients with lymph node metastasis grades of N0, N1, and N2 were 360, 21, and 4, respectively. The overall 5-year survival rate of the ANP group was 94.7%, which was superior to that of the non-ANP group (90.4%; P = 0.003). The 5-year survival rates of patients with lymph node metastasis were 94.9% and 91.8% in the ANP and non-ANP groups, respectively (P = 0.733). Only 3 patients in the ANP group died from gastric cancer.The survival of patients treated by an autonomic nerve-preserving gastrectomy was equivalent to that of patients treated by a conventional gastrectomy, thus suggesting that an autonomic nervepreserving gastrectomy could be a useful procedure for the treatment of early gastric cancer.