Figure 1From: Fast sequences MR imaging at the investigation of painful skeletal sites in patients with hip osteonecrosisA 33-year-old patient with history of S.L.E. and hip ON, presented with a painful knee. The plain x-rays (a,b) revealed an ostenecrosis lesion at the superior pole of the patella (arrows). The sagittal fat suppressed T2-w TSE MRI (c) showed this ON lesion at the patella and two additional lesions at femur and tibia (arrowheads).Back to article page