23-year-old female with perianal discomfort. Evaluate for fistula or abscess related to Crohn's disease. PELVIS:UTERUS, ADNEXA: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: Chronic wall thickening involving the visualized descending colon, as well as the sigmorectal colon, compatible with provided history of Crohn's disease and similar to prior study. Increased wall enhancement on postcontrast images, suggestive of active inflammatory bowel disease. Mild susceptibility artifact at the sigmorectal junction, most likely related to postsurgical change or surgical clips.BONES, SOFT TISSUES: A small perianal intersphincteric sinus tract is seen extending from the left 4 o' clock position and traversing superiorly to terminate in a 2.6 x 1 cm persistent left-sided focus (series 5/32). Additional tracts and collections seen on prior examination appear to have resolved.OTHER: Trace nonspecific pelvic ascites.
1. Small left perianal intersphincteric sinus tract/collection, not significantly changed.2. Findings suggestive of active on chronic inflammatory bowel disease of the visualized distal colon.