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A 73-year-old man underwent abdominoperineal resection for a rectal cancer. He developed a hip pain 3 years and 6 months after the surgery. A CT scan revealed a local recurrence in the perineum and multiple lung metastases in the bilateral lung. He received systemic chemotherapy consisting of XELOX with bevacizumab. Thereafter, the hip pain was slightly relieved. The hip pain worsened 1 year and 6 months after the recurrence. The border between the perineal tumor and skin was very narrow, and conventional radiation therapy could cause a perineal skin necrosis and subsequent poor wound healing. Therefore, we selected a Cyberknife treatment. The hip pain was relieved and a CT scan showed a reduction of the perineal tumor's size after the Cyberknife treatment. A Cyberknife treatment may be effective and promising as palliation for patients with local recurrence of rectal cancer.

A 77-year-old man presented with poor appetite and dyspnea. A gastroendoscopy showed an advanced gastric cancer and a CT scan demonstrated diffuse interstitial infiltrative shadows in both lungs. Laboratory data showed high level of anti-SSA and anti-SSB antibodies, suggestive of interstitial pneumonia associated with Sjögren's syndrome. Although the levels of KL-6 and SP-D, markers of interstitial pneumonia, decreased after steroid and immunosuppressive therapy, the CT findings of interstitial pneumonia showed no remarkable change. Surgery was performed 2 months after the administration of prednisolone since the respiratory function had improved, allowing the administration of general anesthesia. A CT scan revealed remarkable improvement of the lung lesions after the surgery. Therefore, it is likely that Sjögren's syndrome and interstitial pneumonia manifested as paraneoplastic syndromes in the presented case.

A 76-year-old man presented with many bullous lesions and erythema over his whole body in August 2014. Blood examination showed an elevation of the anti-BP180 antibody (658 U/mL) and a biopsied specimen of the skin lesions showed subepidermal bulla. A diagnosis of bullous pemphigoid was made based on the clinical and histological findings. Although 20 mg/day of prednisolone was administered, there was a poor response and consequently the dose of steroid was increased to 70 mg/day after 2 weeks. Bullous pemphigoid related to a malignant tumor was suspected. Colonic endoscopic examination revealed a sigmoid colon cancer and he underwent a sigmoidectomy with lymphodenectomy. The histopathological findings revealed a moderately-differentiated adenocarcinoma, pT1b, pN1, pStage Ⅲa, and he received adjuvant chemotherapy(UFT/ LV). The dermatological findings were rapidly relieved after tumor resection and anti-BP180 antibody was normalized. He has had no signs or symptoms of recurrence, both of the cancer and the bullous pemphigoid, for 9 months after the operation.

A 63-year-old man who had a history of rectal cancer and was treated with low anterior resection in February 2006, presented with liver metastases in September 2007 and underwent right anterior sectionectomy of the liver. He developed a pelvic wall recurrence with buttock pain in September 2009. This was treated with conventional radiation therapy and Cyber- Knife. The buttock pain was relieved after CyberKnife treatment and the patient received systemic chemotherapy in the outpatient clinic. Subsequently, he developed a left sacral recurrence with buttock pain and gait disturbance in August 2013. Since the tumor was located close to the field previously subjected to radiotherapy, we opted for CyberKnife treatment again. Although the pain subsided, our patient died of lymphangitic carcinomatosis in April 2014, 7 years and 2 months after the surgery. In this case, CyberKnife was effective in treating pelvic recurrence with pain, and thus, may have a significant role to play in the multidisciplinary treatment of metastatic colorectal cancer.

We report 4 cases of gastrointestinal perforation associated with systemic administration of bevacizumab. Case 1: A 51- year-old man with colorectal cancer (CRC) received mFOLFOX+bevacizumab (Bev). A small intestinal perforation occurred 7 days after Bev administration (Bev-a) and was successfully treated with omental packing. Case 2: A 50-year-old woman with CRC received capecitabine+Bev. A small intestinal perforation was detected 5 days after Bev-a, and was successfully treated with primary suture and an omental flap. Case 3: A 74-year-old man with CRC received CapeOX+Bev. A duodenal perforation occurred on the same day as Bev-a, but could be treated conservatively. Case 4: A 57-year-old man with lung cancer received DTX+Bev. A small intestinal perforation occurred 13 days after Bev-a, but this could be managed with primary suture and an omental flap. The gastrointestinal perforation presented with mild abdominal pain and was detected within 14 days after Bev-a in each of these 4 cases. Three patients were successfully treated with only minimal surgical procedures and 1 patient could be managed with conservative treatment for a perforated duodenal ulcer.

A 63-year-old man had undergone a low anterior resection for rectal cancer with multiple liver metastases. Oral UFT (450 mg/day) administration alone was started after the operation. After 6 months post operatively, the patient was diagnosed as anastomosis recurrence because of ileus by abdominal X-ray. Transverse loop colostomy was performed by emergency surgery. After surgery, he suffered from paraplegia for lumbar vertebrae metastases. UFT+LV therapy was started. After chemotherapy a significant reduction of the lymph node and liver metastases and an apparent decrease in CEA and CA19-9 were observed. The patient left the hospital and showed no signs of tumor exacerbation for three months. The patient died of aggravation of primary disease afterwards. The therapy was safe and effective, and has successfully maintained the quality of life (QOL) of this patient.

A 71-year-old man was diagnosed with giant hepatocellular carcinoma (HCC) and hepatitis C cirrhosis at a nearby hospital. Image diagnosis showed no other metastasis, but the tumor was very huge with daughter nodules in the bilateral lobe of the liver. He was thus treated by oral administration of UFT (300 mg/day). Two months later, the giant liver tumor had shrunk remarkably, and the daughter tumors had disappeared. Eight months later, the levels of serum AFP and PIVKA-II had also reduced remarkably. Twelve months following the first treatment, the levels of both serum AFP and PIVKA-II began increasing again, and he was referred to our hospital. CT showed 2 liver tumors, 1 of which showed viability with moderately differentiated hepatocellular carcinoma and the other evidencing necrosis histologically. Radio frequency ablation therapy was performed for 2 tumors by open laparotomy. It was considered that administration of UFT is a useful and safe therapy for far advanced HCC.