Fig. 3
From: Imaging findings of gastrointestinal tract tumors in children and adolescents
a, b A 17-year-old girl with rectal bleeding for the last 2 weeks. Hb level was 9.8 gr/dL (normal range 11.7–15.5 gr/dL). Colonoscopy (performed in an external center) showed many irregular mucosal polyps in the descending/sigmoid colon and rectum. Biopsy revealed villous adenocarcinoma. The patient underwent total colectomy. a, b Contrast-enhanced coronal reformatted CT images show hypodense polypoid tumoral lesions in the descending colon (arrows)