9-year-old male with history of CGD colitis and perianal abscess. Repeat exam to evaluate for resolution. Perirectal pain, swelling and drainage. BONE MARROW: No significant abnormality noted.SOFT TISSUES: The previously seen superficial left perineal soft tissue fluid collection has decreased in size (901/96) to approximately 7 mm. There continues to be peripheral enhancement of the thick abscess wall, with corresponding internal high T2 signal and low T1 signal. A smaller, more anterior low T1/high T2 focus is seen within this left anterior perineal area of inflammation, which may be a smaller adjacent loculated collection versus an anterior extension of the above-described abscess (901/100).Significant adjacent inflammation extends anteriorly to the base of the scrotum, and minimally involves the right perineum. No additional fluid collections are seen.JOINTS: No significant abnormality noted.ADDITIONAL
Small, thick walled, left medial perineal abscess and associated inflammation as above.