Double line sign is a pathognomonic sign seen in T2W images of MRI of bone infarct at border between the viable and non-viable bone. In these images, two lines are seen at the border of infarct-the inner bright line due to granulation tissue and the outer darker line due to sclerosis. Osteonecrosis is reported in 3-30% of SLE. Osteonecrosis in SLE is possibly steroid induced. This has to be differentiated from ‘rim sign’ which is seen in avascular necrosis due to osteochondral fragment with fluid surrounding it.