A duodenal gastrointestinal stromal tumor mimicking a pancreatic neuroendocrine tumor: a case report.

Background: Duodenal gastrointestinal stromal tumors are rare. If tumor growth is extraluminal and involves the head of the pancreas, the diagnosis of a duodenal gastrointestinal stromal tumor is difficult.

Case Presentation: A 44-year-old Japanese woman was referred to our hospital with anemia.

Locally advanced gallbladder cancer treated with effective chemotherapy and subsequent curative resection: a case report.

Background: Surgical resection of gallbladder cancer with negative margins is the only potentially curative therapy. Most patients with gallbladder cancer are diagnosed in an advanced stage and, despite the availability of several chemotherapies, the prognosis remains dismal. We report a case of locally advanced gallbladder cancer that was successfully treated with effective cisplatin plus gemcitabine, followed by curative resection.

Synchronous gastric cancer and carcinoma in situ of the pancreas.

Abnormal findings in the pancreatic duct without a mass may require serial pancreatic juice aspiration cytological examination. In cases of synchronous gastric cancer and stage 0 pancreatic cancer, spleen-preserving pancreatectomy may have advantage.

A liver metastasis 7 years after resection of a low-risk duodenal gastrointestinal stromal tumor.

Duodenal gastrointestinal stromal tumors (dGISTs) are rare, and a lack of consensus exists regarding their treatment, particularly for recurrent disease. We herein report a rare case of liver metastasis 7 years after resection of a low-risk duodenal gastrointestinal stromal tumor. A 45-year-old woman revealed positive fecal occult blood.

A Case of Stage II Ascending Colon Cancer with Cardiac Tamponade Due to Pericardial Metastasis.

BACKGROUND Malignant tumors, such as lung and breast cancers, can metastasize to the heart. However, cardiac metastasis rarely occurs in colorectal cancer. Cardiac metastasis cases are typically asymptomatic and rarely cause cardiac tamponade.

Alpha-fetoprotein-producing Colon Carcinoma with Rapidly Increasing Liver Metastases That Resulted in Death: A Case Report.

Alpha-fetoprotein (AFP) has been widely used as a tumor marker for detecting hepatocellular carcinoma and yolk sac tumors. Recently, cases of gastrointestinal cancer with elevated serum AFP levels have been reported. However, AFP-producing colon cancer is considered rarer than other AFP-producing gastrointestinal cancers.

A safe and reliable technique for fascial closure without special devices after laparoscopic surgery.

Introduction: To prevent port-site hernia, we established a simple and low-cost closure method that uses a venous catheter needle and suture, without any other special devices.

Materials And Surgical Technique: We used the inner needle of a 16-G venous catheter and a 2-0 absorbable bladed suture. To evaluate the efficacy of this technique, the procedure time was noted and compared among three operators (an experienced surgeon and two inexperienced surgeons).

Mucinous nonneoplastic cyst of the pancreas penetrates the colon causing infection: a case report.

Background: Mucinous nonneoplastic cyst of the pancreas is a rare disease defined as a cystic lesion lined with mucinous epithelium, supported by hypocellular stroma and not communicating with the pancreatic ducts. Mucinous nonneoplastic cyst of the pancreas has no malignant potential and does not require surgical resection or surveillance. However, its preoperative differentiation from other cystic lesions of the pancreas is difficult because of several overlapping clinical, radiological, and biochemical features.

Spontaneous regression of transverse colon cancer with high-frequency microsatellite instability: a case report and literature review.

Background: Spontaneous regression (SR) of colorectal cancer (CRC) is extremely rare, and only few cases have been reported. Although it is not yet clarified, a plausible mechanism for SR of CRC is an immunological event.

Case Presentation: In this report, we present the case of SR of primary CRC in a 78-year-old man.

Prognostic Nutritional Index Predicts Treatment Outcomes following Palliative Surgery for Colorectal Adenocarcinoma.

Objectives: Palliative surgeries such as stoma creation and bypass are effective for relieving symptoms related to incurable abdominal malignancies; however, these methods are controversial in patients with severe metastatic disease or poor pre-surgical health. The aim of this study was to examine the clinical significance of the prognostic nutritional index (PNI) in evaluations for palliative surgery.

Methods: We retrospectively analyzed data from 37 patients who underwent palliative surgery for histologically-proven colorectal adenocarcinoma from 2009 to 2015.

Hemorrhagic Cholecystitis in a Patient on Maintenance Dialysis.

The present paper describes a case of hemorrhagic cholecystitis in a patient on maintenance dialysis. The patient presented with right upper quadrant abdominal pain. Computed tomography revealed swelling of the gallbladder, high- and isodensity contents of the gallbladder, and high-density stone in the gallbladder neck.

Successful resection of liver metastasis detected by exacerbation of skin symptom in a patient with dermatomyositis accompanied by rectal cancer: a case report and literature review.

Background: Dermatomyositis (DM) is a rare syndrome that belongs to the group of idiopathic inflammatory myopathies. The association between DM and malignancy is well recognized, and the severity of DM symptoms has been linked to the progression of metastatic disease.

Case Presentation: We report the case of a 42-year-old man that was diagnosed with dermatomyositis (DM) and rectal cancer.

[A case of lung cancer with small intestine metastasis with perforative peritonitis as the initial symptom].

Herein, we report a case oflung cancer with metastasis to the small intestine, with perforative peritonitis as the initial symptom. An 82-year-old man who had undergone subtotal gastrectomy and Roux-en-Y anastomosis for gastric cancer 8 years previously was admitted to our hospital with abdominal pain. We diagnosed the patient with gastrointestinal perforation, and a chest computed tomography(CT)scan showed a mass in the right lung.

[A case of advanced gastric cancer effectively treated with weekly paclitaxel as neoadjuvant chemotherapy].

We report a patient with advanced gastric cancer responding remarkably to neoadjuvant chemotherapy consisting of weekly paclitaxel. The patient was a 50-year-old male who had large advanced gastric cancer, suspected of invasion to the duodenum and pancreas and severe lymph node metastasis [cT4 (pancreas), cN2, cH0, cP0, cM0, cStage IV]. He was treated with weekly paclitaxel as neoadjuvant chemotherapy.