Sigmoid Adenocarcinoma Discovered in an Incarcerated Inguinal Hernia.

Large bowel obstruction is a known surgical emergency. Common causes include malignancies of the colon and benign conditions, including hernias, adhesions, and other less common conditions such as inflammatory bowel disease, diverticular disease, and tuberculosis. However, the coexistence of hernias and colon neoplasm is a rare finding, one that is usually identified intraoperatively. In addition, there is no consensus on the best treatment route. We present a case of an 86-year-old male who presented in an emergency setting with an initial diagnosis of intestinal obstruction and an incarcerated left inguinal hernia. Upon exploratory laparotomy, the content was discovered to be an obstructed sigmoid colon due to a sigmoid colon neoplasm.