28-year-old female with past medical history of right hip labral tear status post arthroscopic labral repair and acetabuloplasty and cam decompression with iliopsoas release (10/1/2015). Right-sided pain has resolved. She now endorses left groin pain, particularly during flexion, for instance during upstroke while bicycling. Evaluate for labral tear. ACETABULAR LABRUM: There is slight blunting of the free edge of the anterior superior labrum, which may reflect mild degeneration/fraying, but we see no discrete tear. ARTICULAR CARTILAGE AND BONE: There is slight bony prominence along the superolateral aspect of the femoral head-neck junction indicating a cam deformity, with an alpha angle of approximately 60 degrees. There is a cystic abnormality anteriorly within the femoral head, likely representing a synovial herniation pit, which can also be associated with femoral acetabular impingement. We see no fluid filled articular cartilage defects. SOFT TISSUES: The soft tissues are unremarkable.ADDITIONAL
Cam deformity of the left femoral head-neck junction and synovial herniation pit can be associated with femoral acetabular impingement in the correct clinical context. Although we see no discrete labral tear, the free edge of the anterior superior labrum appears slightly blunted, which could reflect degenerative fraying. 