A Case of Streptozocin Monotherapy for Unresectable Duodenal Neuroendocrine Tumor G2.

Background: Duodenal neuroendocrine tumors (NET) are rare, and few reports have demonstrated the effectiveness of chemotherapy for duodenal NET, with not many other treatment options available. Here, we present a case of unresectable duodenal NET G2 that was effectively treated with streptozocin (STZ) monotherapy. We also perform a literature review.

[A case of mature intestinal malrotation with cecal volvulus].

We report an uncommon case of an elderly patient with cecal volvulus caused by intestinal malrotation. We performed lower gastrointestinal endoscopy on an 84-year-old man with a chief complaint of abdominal distention and fever. However, emergency surgery had to be performed because intestinal perforation had occurred.

[A Case of Laparoscopic Whole Layer Cholecystectomy for Elevated Lesion Suspected Biliary Cancer].

A case of attempted laparoscopic cholecystectomy for elevated lesion which was clearly early biliary cancer. Laparoscopic cholecystectomy has become popular as a minimally invasive surgical method, and is the primary choice for benign diseases. However for cases of suspected biliary cancer, open cholecystectomy, rather than laparoscopic, is recommended according to medical guidelines.

[A Two-Stage Right Hemicolectomy Case in Which the First Surgery Was Laparoscopic Ileocecal Resection Based on Preoperative Diagnosis of Acute Appendicitis].

We report a case oftwo -stage right hemicolectomy in which the first surgery performed was laparoscopic ileocecal resection based on the preoperative diagnosis ofacute appendicitis. The second surgery was performed based on pathological diagnosis ofadvanced cecal cancer accompanied by appendicitis. A 49-year-old woman came to our hospital with a chief complaint of abdominal pain in the lower quadrant for 1 week.