Presentation
Anterior shoulder dislocation during self-defense training. Since the initial event, he complains of diffuse shoulder pain, weakness, and instability.
Patient Data
Age: 15 years
Gender: Male
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A fat-suppressed axial T1-weighted MR arthrography demonstrates an avulsed anteroinferior labrum (3-6 o'clock) with scapular periosteum intact but stripped medially.
Case Discussion
The Perthes lesion is a variation of the Bankart lesion, where the scapula periosteum is lifted and stripped medially with the detached anterior labrum (3-6 o'clock). The Perthes lesion may be demonstrated by fluid extending beneath the labrum and filling the space between the elevated periosteum anteriorly and the scapula posteriorly.
Radiographer: TSRM Fabio Imola
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