A Surgical Case of Incarcerated Inguinal Hernia with Volvulus of the Sigmoid Colon Segment Containing a Cancer Lesion in the Hernia Sac

Abstract

A 63-year-old man with a 10-year history of left inguinal hernia visited our hospital with the chief complaint of diarrhea. Abdominal CT revealed a left inguinal hernia, circumferential wall thickening of the sigmoid colon segment within the hernia sac, and dilatation of the descending colon. The patient was diagnosed as having strangulated inguinal hernia and emergency surgery was performed. Intraoperatively, volvulus of the sigmoid colon, which contained a cancer lesion, was noted within the hernia sac. Sigmoid colon resection with D1 lymph node dissection and single-barrel colostomy (Hartmann method) was performed, along with hernioplasty without a mesh (Bassini method). Histological findings revealed the diagnosis of well-differentiated adenocarcinoma of the sigmoid colon with no lymph node metastasis.