47-year-old female with history of ulcerative colitis status post J-pouch with recent diagnosis of osteomyelitis. Last MRI with osteomyelitis of the coccyx with a sinus tract draining to the left gluteal fold. There is a sinus tract extending from the left gluteal fold towards the coccyx, less prominent when compared to the prior exam (series 8, image 26). Heterogeneous T1 signal in the fifth segment of the coccyx is nonspecific. No convincing abnormal marrow signal. The remainder of the bone marrow signal is unchanged.Partially visualized contents of the pelvis appears similar to the prior exam. Interval decrease in suprasphincteric sinus tract extending from the left lateral aspect of the rectum. Right lower quadrant ostomy. Partially visualized bilateral Tarlov cysts, unchanged.
1.No convincing evidence of osteomyelitis.2.Interval decreased in size of sinus tract from left gluteal fold. 3.Interval decrease in size of left lateral suprasphincteric rectal sinus tract.