Idiopathic mesenteric phlebosclerosis associated with herbal drugs presenting with asymptomatic fecal occult blood

A 77‐year‐old man who had been taking Chinese herbal drugs containing gardenia fruit for a long time visited our hospital following a positive fecal occult blood test. A computed tomography scan showed multiple linear calcifications distributed on the right‐side mesenteric veins, which is a typical finding of idiopathic mesenteric phlebosclerosis (IMP).