Fig. 4

Femoroacetabular impingement (cam type) in a 25-year-old male patient, complaining of left hip pain and limitation of movement. a, b Axial oblique T1 fat sat post-contrast: a increased alpha angle (87.9°) and abnormal bone bump at the head–neck junction (arrow), b normal acetabular depth (+ 4.9 mm). c–e Sagittal T1 fat sat post-contrast: c anterior labral tear detected as high signal contrast within the labrum substance (arrow), d posterior labral tear detected as high signal contrast, passing within the edge of the labrum (arrow) associated with filling of paralabral cyst (arrow head), e irregular degenerated cartilage (arrow)