Fig. 2

A 24-year- old male patient, presenting with low back pain. a Routine MR protocol images are normal. b Additional coronal STIR images revealed subchondral edema in the inferior aspects of both sacroiliac joints denoting bilateral sacroiliitis
A 24-year- old male patient, presenting with low back pain. a Routine MR protocol images are normal. b Additional coronal STIR images revealed subchondral edema in the inferior aspects of both sacroiliac joints denoting bilateral sacroiliitis