10-year-old female with elevated inflammatory markers, elevated white count, and right hip pain. Bone marrow signal is within normal limits. No acute fracture or malalignment is evident. There is low T1 and low T2 signal along the right mid sacroiliac joint representing sclerosis. There is no specific evidence of sacroiliitis. There is a trace amount of fluid within the left hip joint which is likely physiologic. No right hip joint effusion. The muscles are normal in appearance without abnormal signal. No evidence of loculated fluid collection or soft tissue calcification. There is subtle increased T2 signal along the left aspect of the coccyx in the ischioanal fossa fat.The visualized intra-abdominal contents are within normal limits. The ovaries are seen bilaterally and appear normal in appearance. There is a trace amount of free fluid is noted within the dependent portion of the pelvis.
1.Subtle increased T2 signal along the left aspect of the coccyx in the ischioanal fossa fat favored to be inflammatory in etiology although this is equivocal.2.Right mid sacroiliac joint sclerosis. 3.No right hip joint effusion. 