16-year-old male with Crohn's disease and history of perirectal fistula and abscesses.EXAMINATION: MR enterography without and with IV contrast 1/26/2015 The previously seen left perineal fluid collection has resolved and the anocutaneous fistula has markedly decreased in size, with trace residual T2 hyperintense signal measuring 6 x 4 mm (image 44, series 601), which does not demonstrate appreciable enhancement, but may communicate with a skin surface. No additional sinus tract, fistula or abscess is identified.The T1 hypointense/T2 hyperintense lesion in the right femoral intertrochanteric region is unchanged in size and morphology from the prior examination and stable since 2/20/2014, suggesting a benign etiology.Note is made of a right hydrocele.
1.Near complete resolution of the previously described anocutaneous fistula and resolution of the perineal abscess, without new abscess, sinus tract or fistula identified.2.Stable osseous lesion in the intertrochanteric region, which is unchanged since 2/20/2014, and likely benign in etiology.3.Right hydrocele, further evaluation with testicular ultrasound is recommended.