Delayed presentation of splenic injury following diagnostic colonoscopy

Abstract

Splenic injury (SI) is a rare complication after colonoscopy, but should be considered in the differential diagnosis of acute abdominal pain following this procedure. We report a case of delayed rupture and review pertinent literature. A 70-year-old patient on oral warfarin intake underwent colonoscopy that diagnosed obstructive rectal cancer and elongated colon conditioning the endoscope's passage. After 48 h, patient experienced sharp abdominal pain with mild peritoneal signs. Contrast-enhanced CT scan evidenced large amount of abdominal-free blood collection from grade II SI. Hypovolemic shock occurred following brief clinical observation. Urgent laparotomic splenectomy and contextual Hartmann's procedure were then carried out. Postoperative course was uneventful and definitive histology confirmed splenic subcapsular haematoma and locally advanced adenocarcinoma. Perforation and bleeding more likely occurred after colonoscopy, while few cases of SI are reported in literature since 1974. Traction on the splenocolic ligament and direct trauma has been advocated as possible causes. Peritoneal adhesions and splenic diseases usually are predisposing factors although not confirmed in our patient. Anticoagulant therapy favoured delayed filling up of subcapsular haematoma while bowel obstruction added further surgical challenge. Rapid onset of hemorrhagic shock required urgent splenectomy that remains the procedure of choice among the literature reviewed.