Male; 35 years old. Reason: CD, perianal abscess History: Perianal pain PELVIS:PROSTATE/SEMINAL VESICLES: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: Subcentimeter but rounded perirectal lymph nodes are most likely reactive. These nodes are not pathologically enlarged by size criteria.BOWEL, MESENTERY: Mild submucosal fat deposition in the visualized rectosigmoid colon, similar to prior CT and most compatible with chronic inflammatory bowel disease changes. No evidence of active inflammatory bowel disease.BONES, SOFT TISSUES: There is a thin, curvilinear tract of high T2 signal with enhancement extending from the left proximal anus at the 3 o'clock position to the skin surface at the left medial gluteal cleft, most compatible with perianal fistula (series 7/65-88). There is a small, thin focus of high T2 signal extending anteriorly from the right proximal anus at the 11 o'clock position, with appearance most suspicious for blind-ending sinus tract (series 4/35). No evidence of perianal abscess.OTHER: No significant abnormality noted.
1. Left-sided perianal fistula as detailed above. Probable right-sided perianal sinus tract. No perianal abscess.2. No active inflammatory bowel disease.