History of Crohn's disease with perianal abscess. PELVIS:PROSTATE/SEMINAL VESICLES: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: Originating at approximately the 1:00 position of the anal canal is a very thin T2-weighted fluid tract which proceeds caudally within the intersphincteric space terminating on the left gluteal cleft. Proximally this is associated with a 2 mm non-drainable fluid focus near its origin.Additional, probably blind-ending sinus tract origination from the 6:30 position (series 8/50). In the distal anal canal there is a vague region of linear T2-weighted mild hyperintensity extending through the 8:00 position extending trans-sphincterically where there is mild edema type signal in the perirectal ischioanal fossa. This may represent a small sinus tract with inflammation or granulation/healed tissue.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
Perianal fistula and sinus tract disease without a drainable fluid collection.