Metastatic colon cancer derived from a diverticulum incidentally found at herniorrhaphy: a case report.

Background: There are few reports of metastases from colon cancer to an inguinal hernia sac, and few reports of colon cancer originating in diverticula. We report a patient with carcinoma of the sigmoid colon arising in two diverticula, who presented with peritoneal seeding to an inguinal hernia sac, and a review of the literature.

Case Presentation: A 55-year-old male underwent open herniorrhaphy for a left inguinal hernia.

A case of perforated sigmoid diverticulitis in which gram staining of ascitic fluid was useful for diagnosis.

An 85-year-old woman was admitted to our hospital for steroid therapy for relapsing nephrotic syndrome. During hospitalization, she complained of sudden epigastric pain at night. Although there were signs of peritoneal irritation, CT showed a large amount of ascitic fluid, but no free intraperitoneal gas.

Omental Infarction due to Omental Torsion.

Omental torsion is a rare cause of acute abdomen and sometimes requires surgery. Recently, we encountered a case of omental torsion diagnosed as omental infarction preoperatively. An 18-year-old male presented to our emergency room with a chief complaint of lower abdominal pain since previous 2 days.