Idiopathic Colonic Varices: A Rare Cause of Recurrent Lower Gastrointestinal Bleeding

A 76-year-old man with a past medical history of hypertension and hypothyroidism was referred by his primary care physician due to recurrent, bright red, lower gastrointestinal bleeding without anemia. The patient denied family history of colon cancer, and he did not have a history of cirrhosis, portal hypertension, colon malignancy, or congestive heart failure