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To clarify the function of the puborectalis muscle(PM)in fecal incontinence(FI)prevention after low anterior resection (LAR)for lower rectal cancer(LRC), PM function at 3 years after LAR was studied. A total of 29 patients aged 40-79 years (19 men and 10 women, mean age: 63.9 years)who underwent LAR for LRC were enrolled in the present study. Based on the presence of postoperative FI, these patients were divided into 2 groups[group A: patients with FI(n=13), 11 men and 2 women aged 43-75 years(mean age: 64.8 years)and group B: patients without FI(continence, n=16), 8 men and 8 women aged 41-79 years(mean age: 62.9 years)]. These groups were compared with group C of control subjects[n=38; 28 men and 10 women aged 42-76 years(mean age: 64.5 years)]. Magnetic stimulation at the S2-4 sacral levels has been shown to activate the sacral motor nerve(SMN)root of the cauda equina. SMN latency(SMNL)was determined on the right, left, and posterior sides of the upper anal canal. FI after LAR was also evaluated using the Wexner score(WS), with a score of 8 or more being associated with FI according to our data. All patients had pathological Stage Ⅰ disease(19 patients: T1, N0, M0; 10 patients: T2, N0, M0). Group A had a larger proportion of men than group B(p<0.1). The distance of anastomosis from the anal verge(DAAV)was significantly shorter in group A(2.2±1.2 cm)than in group B(4.6 ±1.3 cm)(p<0.001). Regarding WS of group A, 23.1% patients had a score of 8-10(mean: 9.0), 53.8% of 11-15 (mean: 13.4), and 30.7% of 16-20(mean: 17.0). All patients in group A(WS: 8 or more)were incontinent. In contrast, all patients in groups B(WS: 0)and C(WS: 0)were continent. Patients with preoperative defecation ability(WS: 0)were also continent. As for SMNL on the right(9 o'clock), left(15 o'clock), and posterior(18 o'clock)sides of the PM located in the upper anal canal, conduction delay was significantly longer in group A(8.4±0.6 ms, 8.2±1.9 ms, and 8.3±0.9 ms, respectively)than in groups B(4.4±0.5 ms, 4.3±0.7 ms, and 4.4±0.9 ms, respectively)and C(4.1±0.5 ms, 4.0±0.5 ms, and 4.2±0.7 ms, respectively)(p<0.001, all). FI after LAR with a short DAAV, especially in men, may cause PM dysfunction due to operative damage of the SMN.

To clarify the pudendal sensory nerve(PSN)play in preventing fecal incontinence(FI)after low anterior resection(LAR) for lower rectal cancer, the PSN function was studied at 6 months after LAR. A total of 36 patients aged 42.0 to 79.0 years (23 males and 13 females with a mean age of 62.0 years)who underwent LAR for laparoscopic radical cystectomy(LRC) were enrolled in the present study. Based on postoperative F1, these patients were divided into 2 groups[group A; patients with FI(n=12), group B; patients without FI(continence, n=24)]. These were compared with group C(n=32, control subjects, 18 males and 14 females aged 40.0 to 76.0 years with a mean age of 61.8 years). Anal mucosal electric sensitivity (AMES)threshold was measured [at the upper 1 cm oral side from dentate line(DL); a, DL; b, and lower zones 1 cm anal side from DL; c]. FI after LAR was also evaluated by the Wexner score(WS). All patients were pathological Stage Ⅰ(25 patients: T1, N0, M0; 11 patients: T2, N0, M0). Group A had a significantly larger proportion of males than group B(p< 0.05). The distance of anastomosis from anal verge(DAAV)in group A(2.4±1.8 cm)was significantly shorter than in group B(4.4±0.9 cm)(p<0.001). WS from 6 to 10 comprised 25.0% of group A, 11 to 15 comprised 50.0%, and 16 to 20 comprised 25.0%. All patients in group A(WS; 8 or more)were incontinent. In contrast, all patients in group B(WS; 0) and C(WS; 0)were continent. Patients in pre-operative defecation(WS; 0)were also continent. On the AMES(a, b, c), sensitivity of patients in group A(6.4±1.1, 5.1±0.5, 4.9±0.6 mA)was significantly higher than in groups B(2.6±0.5, 2.4 ±0.4, 2.5±0.6 mA)and C(2.3±0.4, 2.1±0.4, 2.3±0.5 mA)at all zones(p<0.001). FI after LAR with a short DAAV, especially male, may be PSN dysfunction due to operative damage of PSN.

The demerit of pylorus-preserving gastrectomy(PPG)is the postprandial abdominal fullness(PAF)with gastric stasis in the remnant stomach(GSRS). We investigated the relationship between clinical findings and GSRS, and between GSRS and interdigestive migrating motor complex(IMMC)in PPG patients. A total of 30 patients(17 men and 13 women, mean age of 62.3 years)after PPG for early gastric cancer(Billroth Ⅰ)were divided into 2 groups(group A; 18 patients with GSRS, group B; 12 patients without GSRS). The relationship between GSRS including clinical findings and IMMC was studied from 1.5 to 3 years after operation. A catheter equipped with a micro-tip force transducer was inserted transnassally into the remnant stomach and duodenum in a supine position, and the IMMC was studied. All patients were Stage ⅠA(mucosal cancer, no lymph node metastasis, no distant metastasis). The remnant stomach was 1/3 compared with stomach size before operation. The length of the antral cuff in group A(1.5±0.2 cm)was significantly shorter than group B(3.2±0.3 cm)(p =0.0004). Appetite was significantly recognized in group B compared with group A(p=0.0067). PAF was significantly recognized in group A compared with group B(p=0.0001). Reflux esophagitis was found in group A more than group B. Early dumping syndroms did not found significant differences in both groups. In endoscopic esophagogastric finding of the remnant stomch, gastritis with GSRS was significantly found in group A compared with group B(p=0.0001). The IMMC was significantly recognized in group B compared with group A(p<0.0001). The occurrence of the PAF due to the GSRS may be caused by abscens of the IMMC.

To clarify the pudendal motor nerve(PMN)play in preventing fecal incontinence(FI)after low anterior resection(LAR) for lower rectal cancer, the PMN function was studied at early postoperative period after LAR. A total of 30 patients aged 43 to 78 years (21 men and 9 women with a mean age of 62.4 years) who underwent LAR for LRC were enrolled in the present study. Based on postoperative FI, these patients were divided into 2 groups(group A: patients with FI[n=10], group B: patients without FI[continence, n=20]). These were compared with group C(n=28, control subjects, 18 men and 10 women aged 46 to 76 years with a mean age of 60.2 years). Magnetic stimulation at the S2-4 sacral levels has been shown to activate the PMN root of the cauda equina. PMN latency(PMNL)at posterior sides of the anal canal was studied. FI after LAR was also evaluated by the Wexner score(WS). All patients were pathological Stage Ⅰ(20 patients: T1, N0, M0; 10 patients: T2, N0, M0). Group A had a significantly larger proportion of men than group B(p<0.05). The distance of anastomosis from anal verge(DAAV)in group A(2.4±1.7 cm)was significantly shorter than in group B(4.4±0.9 cm)(p< 0.001). WS from 8 to 10(mean: 9.25)comprised 20.0% of group A, 11 to 15(mean: 13.5)50.0%, and 16 to 20(mean: 18.5)comprised 30.0%. All patients in group A(WS: 8 or more)were incontinent. In contrast, all patients in group B(WS: 0)and C(WS: 0)were continent. Patients in pre-operative defecation(WS: 0)were also continent. As for PMNL, the conduction delay in group A(7.9±0.9 ms)was significantly longer than in groups B(4.1±0.6 ms)and C(3.9±0.3 ms) (p<0.001, respectively). FI after LAR with a short DAAV may be EAS dysfunction due to damage of PMN.

Undifferentiated pleomorphic sarcoma(UPS)of the small intestine is extremely rare and has a poor prognosis. We encountered a case of primary UPS of the ileum without metastatic lesions. The patient was a 44-year-old man who presented with the chief complaint of lower abdominal pain for 9 months. He also presented with anemia, hypoproteinemia, and a lower abdominal tumor about 10 cm in size. Abdominal CT with cystography showed an irregular solid tumor with compression of the cystic bladder. Based on a presumptive diagnosis of the retroperitoneal tumor, he underwent laparotomy. An irregular tumor, 9×8×5 cm in size, was observed in the ileum approximately 60 cm from the terminal ileum. There were no lymph node, peritoneal, or liver metastases. Partial excision of 30 cm of the ileum from 50 cm to 80 cm at the terminal ileum was performed. The final histological diagnosis was primary UPS(storiform pattern with fibroblast-like spindle cells). The patient was not administered adjuvant chemotherapy and was discharged on postoperative day 10. He is currently well without any evidence of recurrence for 2 years after the surgery.

To clarify the basis for postprandial abdominal fullness(PAF)in patients after pylorus-preserving gastrectomy(PPG), the authors investigated the relationship of PAF with postgastrectomy disorder(PGD)and gastric emptying function(GEF)in PPG patients. A total of 22 patients(14 men and 8 women, average age 64.8 years)were divided into 2 groups[Group A, PAF-positive(n=12); Group B, PAF-negative(n=10)]at 1 year after PPG for early gastric cancer. The relationships of PAF with PGD and GEF were examined. Length of the antral cuff(LAC)was significantly shorter in group A than in group B(p< 0.05). Appetite and food consumption per meal were significantly greater in group B than in group A(p<0.05 and p<0.01, respectively). Symptomatic reflux esophagitis(RE), early dumping syndrome, decreased percent body weight before illness, endoscopic RE, and endoscopic gastritis in the remnant stomach were more common in group A than in group B. Gastric stasis in the remnant stomach was significantly more common in group A than in group B(p=0.0071). GEF for solid food [time to 50%residual rate in the remnant stomach(minutes)and residual rate at 120 minutes in the remnant stomach(%)] in group A was significantly delayed compared with that in group B(p<0.001). Patients with PAF showed shorter LAC, delayed GEF for solid food, and worse postoperative quality of life(QOL), compared with those without PAF.

We report a 50-year-old man with local recurrence of descending colon cancer with ileus obstruction and brain metastasis, 2 years 6 months after initial resection due to perforation of descending colon cancer(Hartmann procedure, D2 lymph node resection, Stage II, tub2). He complained of left upper abdominal pain and abdominal fullness. He also complained of paresis of the right upper extremity and of experiencing convulsions 1 month before admission. He was diagnosed with local recurrence of descending colon cancer, based on findings of contrast radiography and the presence of colonic fiber. We subsequently performed transanal decompression as a bridge to surgery and performed partial resection of the local recurrence in the anastomosis at the descending colon and ileum involved with the cancer 2 weeks after decompression. In addition, multiple lung and liver metastases, and solitary brain metastasis(2.5 cm in size located in the left side of the parietal region) were detected by cerebral plain computed tomography. However, he refused both chemotherapy after surgery, as well as further surgery and/or radiation therapy for the brain metastasis. He desired to return to his home as soon as possible. In order to improve his quality of life(QOL), in-home treatment involving the best supportive care(BSC)conservative therapiesincluding, anticonvulsant and anti-intracranial hypertension drugs-were administered to prevent brain metastasis symptoms, such as paresis of the right upper extremities and convulsions. He was discharged from our hospital 14 days after surgery. Regrettably, he died due to bronchial asthma 75 days after palliative surgery in his home.

Purpose: We performed this retrospective study to evaluate the usefulness of a transnasal decompression tube(long ileus tube)as a bridge to surgery in patients with right-sided obstructive colorectal cancer., Patients and Methods: There were 8 patients(5 men and 3 women, aged 64 to 85 years with a mean age of 75.9 years)who had undergone transnasal decom- pression in the last 10 years., Result: 1) The success rate of intubation was 100%(8/8). 2) Primary cancer location: Ascend- ing colon cancers were 37.5%(3/8)and right-sided transverse colon cancers 62.5%(5/8). 3) Decompression periods were from 1 to 43 days, with a mean period of 12.8 days. 4) Stage: Stage II was found at 12.5%(1/8), Stage II , III a, III b and IV were found at 25.0%(2/8), respectively. Advance Stages( III a, III b, and IV )were 75.0%(6/8). 5) Pathology: Well differentiated tubular adenocarcinoma(tub1)was at 37.5%(3/8)and moderately differentiated tubular adenocarcinoma (tub2)at 62.5%(5/8). 6) Operative procedures: Radical operation was performed in 6 cases except for 2 cases with stage IV disease. 7) Complications: Early complication were found in 37.5% of the cases(3/8). Wound infection was found in 12.5%(1/8), wound infection with rupture in 12.5%(1/8), and adhesive ileus in 12.5%(1/8). 8) Outcomes: The 5-year survival was 37.5%(3/8)., Conclusion: Transnasal tube decompression for right-sided malignant colorectal obstruction is useful for avoiding an emergency operation, and a single-stage operation can be performed in patients excluding Stage IV disease.

Squamous cell carcinoma(SCC)of the breast is rare and its clinicopathological features have not been fully elucidated. We report a patient with SCC of the right breast who underwent surgical resection. A 51-year-old woman was admitted to our hospital because of a right breast tumor. A round tumor with an irregular surface measuring about 3.0×2.5 cm was palpable in the ACarea of the right breast. No abnormal data were observed on laboratory examination, including tumor markers such as carcinoembryonic antigen(CEA), cancer antigen 15-3(CA15-3), breast cancer antigen 225(BCA225), and SCC antigen. Mammography showed a mass with spiculation measuring 2.7×1.7 cm. Ultrasonography also demonstrated a hypoechoic solid tumor with an irregular surface, measuring 2.6×1.6 cm. The pathological diagnosis of a needle biopsy specimen was a mixed type of SCC. We performed a typical right mastectomy with axillary and supraclavicular lymph node dissection. The tumor size was 2.8×1.8 cm. SCC was histologically diagnosed. There was partial invasion to other tissues. The dissected lymph nodes were not involved by carcinoma. Hormone receptors(estrogen and progesterone)and HER2 results were negative. The pathological Stage was II A(T2, N0, M0). The patient refused chemotherapy. However, her condition remains satisfactory without recurrence 2 years after surgery.

Background/aims: The kinetics of the pancreatic hormone glucagon in patients with acute pancreatitis have not been investigated as carefully as those of insulin, in spite of its crucial influence on energy metabolism. In the present study, we studied the kinetics of glucagon and glucagon-related peptides assessed by radioimmunoassay. Furthermore, the molecular forms of these peptides were examined using gel filtration chromatography, and the glucagon processes in the pancreas and intestine in the early stage in patients with acute pancreatitis were investigated., Methodology: Fourteen patients with acute pancreatitis were enrolled in this study. Eight had severe pancreatitis (group S) and six had mild pancreatitis (group M). Ten healthy volunteers were also enrolled as the normal control (group C). Serum levels of glucagon and glucagon-related peptides were assessed on the second admission day in groups S and M, and in an early morning fasting state in group C, using glucagon non-specific N-terminal (glucagon-like immunoreactivity: GLI) and specific C-terminal (immunoreactive glucagon: IRG) radioimmunoassays. The molecular forms of these peptides were also estimated using gel filtration chromatography. We then discuss the glucagon processes based on these findings., Results: Serum GLI and IRG in groups S and M were significantly higher than those of group C (P < 0.01), while those in group S were also significantly higher than those in group M (P < 0.05). In all patients in groups S and M, except for only three in group S, a peculiar glicentin-like peptide (GLLP: MW about 8000) other than pancreatic glucagon was observed in IRG gel filtration chromatography, which was clearly absent from group C., Conclusions: The kinetics and processing of glucagon in patients with acute pancreatitis were quite different from those of healthy subjects. In patients with acute pancreatitis, the peculiar processing of glucagon proceeded in the intestine quite differently from ordinary glucagon processing either in the pancreas or in the intestine, generating a peculiar GLLP.

The lack of effective therapy for disseminated renal cell carcinoma (RCC) has stimulated the search for novel treatments including immunotherapeutic strategies. However, poor therapeutic responses and marked toxicity associated with immunological agents has limited their use. The tumor necrosis factor family member tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)/Apo-2 ligand induces apoptosis in a variety of tumor cell types, while having little cytotoxic activity against normal cells. In this study the activation and regulation of TRAIL-induced apoptosis and TRAIL receptor expression in human RCC cell lines and pathologic specimens was examined. TRAIL induced caspase-mediated apoptotic death of RCC cells with variable sensitivities among the cell lines tested. Compared with TRAIL-sensitive RCC cell lines (A-498, ACHN, and 769-P), the TRAIL-resistant RCC cell line (786-O) expressed lesser amounts of the death-inducing TRAIL receptors, and greater amounts of survivin, an inhibitor of apoptosis. Incubation of 786-O with actinomycin D increased the expression of the death-inducing TRAIL receptors and, concomitantly, decreased the intracellular levels of survivin, resulting in TRAIL-induced apoptotic death. The link between survivin and TRAIL regulation was confirmed when an increase in TRAIL resistance was observed after overexpression of survivin in the TRAIL-sensitive, survivin-negative RCC line A-498. These findings, along with our observation that TRAIL receptors are expressed in RCC tumor tissue, suggest that TRAIL may be useful as a therapeutic agent for RCC and that survivin may partially regulate TRAIL-induced cell death.