Male; 8 months old. Reason: Tight anal sphincter with failure to pass stool. Question of perianal fistulas. Please assess further. Please also evaluate kidneys for malformations. Postcontrast sequences are limited by patient motion.PELVIS:PROSTATE/SEMINAL VESICLES: Not well visualized on today's study.BLADDER: The bladder is compressed by a dilated rectosigmoid colon as described below.LYMPH NODES: No significant pelvic lymphadenopathy. BOWEL, MESENTERY: Marked dilatation of the rectosigmoid colon to a diameter of 3.8 cm which compresses the bladder (series 1201, image 17). The distal 3 cm of rectum and anus are relatively narrowed. Stool is identified throughout the colon.BONES, SOFT TISSUES: No definite T2 hyperintense or enhancing tracts in the perianal region.OTHER: Normal kidneys and other visualized upper abdominal organs.
1.Stool filled colon and markedly dilated rectosigmoid colon which narrows distally. Findings are suggestive of Hirschsprung's disease or anal stenosis.2.No definite fistulous tracts identified in the perianal region.3.Normal kidneys.