32-year-old female with pain and left hip FAI. There is metallic susceptibility artifact along the anterior acetabulum with 2 low signal intensity tunnels within the anterior acetabular dome presumably reflecting prior labral repair. There is amorphous globular increased signal intensity within the adjacent base and substance of the anterior superior labrum at approximately the 1 o'clock position suggesting intrasubstance degeneration. There is also mild irregularity of the surface of the labrum from 1-3 o'clock suggesting fraying. The margins of the anterosuperior labrum are difficult to define due to the adjacent scarring. There is also linear increased signal intensity within the posterior superior labrum at the 10 to 11 o'clock position that appears to involve both the superficial and undersurface fibers of the labrum, suggestive of a nondisplaced tear that was not clearly evident on the outside study from 2/11/2011. These findings are best seen on the radial images as well as on series 1801. There is articular cartilage loss along the anterior superior aspect of the femoral head. The ligamentum teres appears intact. The bone marrow signal intensity is normal. There is scalloping of the anterior aspect of the femoral head/neck junction likely reflecting prior osteotomy. There is atrophy of the left iliopsoas muscle presumably related to prior surgical release. The remaining musculature is unremarkable. On the large field-of-view images, the sacroiliac joints and pubic symphysis appear normal.
1. Surgical changes of prior anterior superior labral repair with increased signal intensity within the labrum suggesting degeneration as well as mild undersurface fraying with adjacent scarring. There is also thinning of the articular cartilage of the adjacent femoral head.2. New linear signal abnormality within the posterior superior labrum likely representing a tear that was not evident on the prior examination.