Rare mimicker of sacroiliitis

A 62-year-old woman was referred for suspected sacroiliitis discovered incidentally on a CT scan performed for pre-transplant assessment, in a context of chronic renal failure due to nephroangiosclerosis with haemodialysis for 18 months. Her renal disease was complicated by anaemia and secondary hyperparathyroidism. She was completely asymptomatic, including no lumbar or buttock pain. The CT scan (figure 1) showed bilateral and symmetrical subchondral bone resorption of blurred appearance responsible for a pseudo-widening which mainly concerned the iliac side, accompanied by an external border of reactive bone condensation. Aspect of the lumbar spine was unremarkable. The last CT scan, 4 years earlier, showed normal sacroiliac joints. There was no personal or family history of inflammatory rheumatic disease, psoriasis or inflammatory bowel disease. Figure 1CT scan in coronal section showing subchondral bone resorption with an external border of reactive bone condensation. The lesions mainly concern the iliac...
Source: Annals of the Rheumatic Diseases - Category: Rheumatology Authors: Tags: ARD, Images in rheumatology Source Type: research