Male 36 years old assess left hip AVN. ACETABULAR LABRUM: There is linear increased T2 signal within the anterior superior acetabular labrum (series 501, image 16 and series 1401, image 4) likely representing a labral tear.ARTICULAR CARTILAGE AND BONE: There is low T1 and heterogeneously high T2 signal within the anterior superior aspect of the humeral head. These areas are outlined with a band of low T1 signal consistent with avascular necrosis. There is associated irregularity of the cortex along the anterior superior femoral head with increased T2 signal most likely due to subchondral fracture. Small round, well-circumscribed areas of high T2 signal likely represent cystic changes from secondary osteoarthritis. The left acetabulum is preserved.Outside of the left humeral head marrow signal is within normal limits, no evidence for avascular necrosis elsewhere. There is one small subchondral cyst in the right femoral head possibly degenerative in etiology.SOFT TISSUES: No significant abnormality noted. ADDITIONAL
1.Avascular necrosis of the left femoral head with subchondral fracturing along the anterior superior femoral head.2.Probable tear of the anterior superior acetabular labrum.