61-year-old female patient with Crohn's disease of ileum and perianal area with perianal pain. Evaluate for perianal abscess or fistula. PELVIS:UTERUS, ADNEXA: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: There is a small tract of signal abnormality arising off the 1'clock position of the distal rectum/anus (image 25, series 1101) which continues posteriorly and tapers in diameter near the cutaneous surface; it is unclear if it terminates as a sinus tract or communicates with the cutaneous surface as a fistula. There is no associated abscess collection. BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No intrapelvic abscess is identified.
Small sinus tract/fistula arising from the distal rectum/anus. No abscess is identified. 