title: Recurrent lower gastrointestinal bleeding from idiopathic ileocolonic varices: a case report.
abstract: BACKGROUND
  Varices of the colon are a rare cause of lower gastrointestinal bleeding, usually associated with portal hypertension due to liver cirrhosis or other causes of portal venous obstruction. Idiopathic colonic varices are extremely rare. Recognition of this condition is important as idiopathic colonic varices may be a cause of recurrent lower gastrointestinal bleeding.
  
  
  METHODS
  We report the case of a 21-year-old Asian man from north India who presented with recurrent episodes of lower gastrointestinal bleeding. Colonoscopy revealed varices involving the terminal ileum and colon to the sigmoid. Thorough evaluation was undertaken to rule out any underlying portal hypertension. Our patient underwent subtotal colectomy including resection of involved terminal ileum and an ileorectal anastomosis.
  
  
  CONCLUSIONS
  Colonic varices are an uncommon cause of lower gastrointestinal bleeding. Idiopathic colonic varices are diagnosed after excluding underlying liver disease and portal hypertension. Recognition of this condition is important as prognosis is good in the absence of liver disease and is curable by resection of the involved bowel.
authors.affiliation: Department of Surgical Gastroenterology, Sanjay Gandhi Post-graduate Institute of Medical Sciences, Lucknow 226014, India. rajneeshkumarsingh@hotmail.com.
authors.forename: Ravula Phani
authors.initials: RP
authors.lastname: Krishna
authors.forename: Rajneesh Kumar
authors.initials: RK
authors.lastname: Singh
authors.forename: Uday C
authors.initials: UC
authors.lastname: Ghoshal