Fig. 48
From: Extrapulmonary tuberculosıs: an old but resurgent problem
MR images of a 43-year-old male. Pre-contrast T1 weighted (a) and post-contrast (b) T1 weighted images demonstrate contrast enhancement in the synovium of the left sacroiliac joint in keeping with acute sacroiliitis (arrows). Arrowhead shows an abscess formation in the left iliac muscle that enhances peripherally after contrast injection