Lateral Orientation of the Colic Flexure of the Male Right Colon

Description

Viewed laterally, the right colon is traced from the ascending colon in the right flank up to the flexura coli dextra (hepatic flexure), where it turns anteriorly and medially into the transverse colon. The bend sits inferior to the right lobe of the liver and gallbladder, and near the inferior margin of the costal cartilages. Posteriorly, the flexure relates to the right kidney and quadratus lumborum, with the peritoneal reflection and variable fixation to the posterior abdominal wall implied by its contour. A sharp angle. That anatomy matters when planning access to the upper right abdomen. Mobilization of the hepatic flexure is a standard step in right hemicolectomy and extended right colectomy, and the lateral view helps clarify why the dissection proceeds along the right paracolic gutter, staying in the avascular plane between the mesocolon and retroperitoneum to protect the duodenum and head of pancreas near the proximal transverse mesocolon. On CT, focal wall thickening or pericolonic stranding at the hepatic flexure can reflect right sided diverticulitis, ischemic colitis, or malignancy, and its proximity to the liver explains how colonic inflammation may mimic hepatobiliary pain. Use this illustration for gross anatomy lab teaching on large intestine topography, surgical atlases covering right colectomy and hepatic flexure mobilization, or gastroenterology content discussing pain referral and imaging differentials in the right upper quadrant. It also fits patient education materials when explaining colonoscopy navigation through the hepatic flexure in adult men. Anatomical accuracy verified by SciePro's Medical Advisory Board.