Fig. 1.

Magnetic resonance imaging performed 1 day after trauma. a T1 short-tau inversion-recovery-weighted coronal view shows disruption of the musculotendinous junction of the supraspinatus with hematoma and edema involving the entire muscle belly; the intramuscular septum is inhomogeneous and slackened (arrow). b Proton density fat-saturated sagittal imaging at the level of the scapular Y view shows a intramuscular hematoma in the posterior portion of the muscle belly and perimuscular edema. c The intramuscular septum is clearly slackened on proton-density fat-saturated axial view (arrow)