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Perforation due to colon cancer maycause peritonitis and septic shock. In these cases, we maynot be able to rescue the patients in spite of emergencysurgical intervention; in these conditions, owing to limitations of operation time, it is difficult for us to assess the state or extent of the disease and to perform an ideal oncological surgerywith dissection of lymph nodes. To overcome these limitations, we introduce the concept of "damage control surgery" developed in the trauma region to treat perforations of colon cancer. There are 3 steps: first, the perforated intestine is resected and the peritoneal cavityis lavaged to control contamination. Open abdominal management is used as a temporaryabdominal closure; second, sepsis is treated in the ICU; and third, based on the treatment strategydecided upon after consulting a colorectal surgeon and the patient's family, a colostomy, anastomosis, and extra dissection of lymph node are performed before abdominal closure. We report the fatal case of a 92-year-old woman who had developed severe shock to indicate the significance of this strategy.

A 56 year-old woman with obesity (BMI3 2) and diabetes mellitus was diagnosed with right renal cell carcinoma. She underwent right nephrectomy 1 year ago. Seven months after surgery, CT revealed a rapidly growing mass near the spleen. The mass showed slight accumulation of FDG (SUVmax=2.4) on PET-CT. Since the lesion grew rapidly and was not enhanced in the early phase of enhanced CT, we diagnosed pancreatic cancer. Distal pancreatectomy and splenectomy were performed. The final pathological diagnosis was invasive ductal carcinoma in the fat replacement of the pancreatic body and tail. Postoperatively, the patient had no complications such as pancreatic fistula or aggravation of glucose intolerance. She received postoperative chemotherapy with gemcitabine. Since she developed pulmonary artery thrombosis, postoperative chemotherapy was interrupted after 8 courses. Thirty-two months after the surgery, she was still living without any recurrence. Acinar cells were absent in the fat replacement of the pancreas, but the pancreatic duct cells were still present. There was carcinoma in situ in the main pancreatic duct surrounding chronic inflammation. Fat replacement itself could be potentially precursor of the pancreatic cancer.

A woman in her 50s underwent distal gastrectomy and D1+b dissection in December 2005 for early gastric cancer that was diagnosed as a signet-ring-cell carcinoma, fStage Ⅱ (T1a, N2, H0, P0, CY0, M0) with 12 lymph node metastases in the second field. Multiple bone metastases were diagnosed on the basis of CT and bone scintigraphy findings and serum ALP elevation (2,743 IU/L) I n December 2010. Fourteen courses of S-1 plus CDDP and 4 mg of zoledronate were administered from January to September in 2011. Pancytopenia, D-dimmer elevation, myelocytes, and metamyelocytes were observed in October 2012, indicating she had bone marrow metastasis. She was treated with a transfusion, anti-DIC therapy, and paclitaxel. She died from gastric cancer in December 2012. We report a rare case of recurrence with bone metastasis from early gastric cancer. S-1 plus CDDP chemotherapy and zoledronate therapy is an effective treatments for multiple bone metastases from gastric cancer.

Esophageal metastasis from breast cancer is rarely observed. We encountered a case of long-term survival after esophageal metastasis from breast cancer that was treated with esophagectomy. A 79-year-old woman developed dysphagia 26 years after radical mastectomy. Endoscopic examination revealed stenosis at the mid-thoracic esophagus. An esophageal biopsy led to a diagnosis of undifferentiated cancer. A computed tomography (CT) scan revealed a massive tumor in the esophagus, but no distant metastases. Esophagectomy was performed with the suspicion of primary or metastatic esophageal cancer. Histopathologically, the excised tumor was an adenocarcinoma, which had histopathological features similar to that of the breast cancer. Accordingly, the adenocarcinoma was diagnosed as esophageal metastasis of the breast cancer. The patient is still alive 8 years after the esophagectomy.

A 74-year-old man was diagnosed with unresectable HER2-positive gastric cancer due to metastases to distant lymph nodes. Paclitaxel combined with trastuzumab was administered as third-line chemotherapy. After 4 courses of therapy, the metastases to distant lymph nodes disappeared with no evidence of progressive disease. Downstaging by chemotherapy made curative treatment feasible and he underwent distal gastrectomy. The patient has been free from recurrent disease 13 months after surgery.

A 49-year-old man was admitted to our hospital with back pain, appetite loss, and body weight loss in January 2009. Gastroduodenal endoscopy, abdominal computed tomography( CT), and magnetic resonance imaging( MRI) revealed type 4 advanced gastric cancer( signet-ring cell carcinoma) with multiple lymph node( No. 16 LNs), right adrenal gland, and multiple bone metastases. Between February 2009 and April 2011, 20 courses of S-1( 80 mg/m2) plus CDDP( 60 mg/m2) and zoledronic acid hydrate (4 mg/body) were administrated. Since May 2011, S-1 (70 mg/m2) and zoledronic acid hydrate( 4 mg/body) have been continued. The lymph node and adrenal gland metastases showed a complete response( CR), and the gastric tumor showed a partial response; however, the bone metastases did not show CR or progressive disease (PD) for 4 years after initiation of therapy. Chemotherapy with zoledronic acid hydrate is considered as a useful therapeutic option for advanced unresectable gastric cancer with multiple bone metastases.

The case is a sixty-something man with a complication of epigastric abdominal pain. X-ray and endoscopic examination of upper gastrointestinal tract showed a rigidity of the gastric wall and the presence of giant folds on gastric body and fornix. Scirrhous type of gastric cancer was suspected and gastric forceps biopsy was performed at many points under the retreated endoscopic examinations. However, the histologic findings revealed no malignant features. We performed staging laparoscopy, and by peritoneal washing cytology and biopsy of a nodule of abdominal wall, he was diagnosed with advanced gastric carcinoma with peritoneal dissemination. In conclusion, staging laparoscopy is one of the useful methods for diagnosis and determination of the management of scirrhous type gastric carcinoma.

A 56-year-old female with chest pain after a meal was found to have the black mucous membrane of the middle intrathoracic esophagus by esophagogastroduodenoscopy. The lesion was diagnosed as primary malignant esophageal melanoma without lymph nodes and other organ metastasis. We underwent a subtotal esophageal by right thoracotomy and laparotomy. She survives with relapse-free for 3 years after the surgery. There is no standard therapy because primary malignant esophageal melanoma is not common. However, we thought a surgical treatment should be performed for a curatively resectable case.