Abnormal large intestine morphology Stercoral ulcer 2013-11-12T10:28:18Z SNOMEDCT_US:38084005 Colon ulcer HP:0012425 SNOMEDCT_US:46040000 Recto-sigmoid colon stercoral ulcer An ulcer of the colon due to pressure and irritation from retained fecal masses. Stercoral ulceration is the loss of bowel integrity from the pressure effects of inspissated feces. The lesion usually occurs in constipated, bedridden patients and presents as an isolated lesion in the rectosigmoid area. UMLS:C0333302 UMLS:C0267491 SNOMEDCT_US:235766003 Gastrointestinal ulcer