Right hip stress reaction. Evaluate for interval change. There is a subcentimeter focus of abnormal signal intensity within the posterior aspect of the medullary cavity of the distal femoral diaphysis that is nonspecific. The focal nature of the abnormality argues against a stress reaction, and the adjacent cortex appears normal. The signal intensity of the remainder of the right femur is within normal limits. Minimal osteoarthritis affects the right hip. There is a small amount of fluid within the right hip joint but this is not necessarily of any clinical significance. There is a tiny focus of fluid signal intensity along the myotendinous junction of the iliopsoas as it courses anterior to the acetabulum, which may not be of any clinical significance. The musculature of the visualized thigh is otherwise unremarkable. Signal abnormality within the left femoral head, seen on the large field-of-view images, indicates avascular necrosis; I see no subchondral fracture or articular surface collapse.
Small focus of intramedullary signal within the distal femoral diaphysis is of questionable clinical significance and may simply represent an eccentrically positioned benign cartilaginous rest assuming there is no history of primary malignancy. I see no findings to suggest stress reaction. Avascular necrosis of the left femoral head and other findings as described above.