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        On the Cover: A 16-year-old boy presented with right shoulder posterior pain after throwing a baseball a long distance and feeling a pop. It was determined that he had a subluxation episode and, after experiencing recurrent posterior instability, he was indicated for arthroscopic evaluation and posterior capsular placation with labral repair. As we began the diagnostic shoulder arthroscopy, we encountered a partially synovialized biceps. His rich capsular vascularity and pristine anterior structures were appreciated during the arthroscopy as well. We wanted to share the anatomic variant with our colleagues and allow them to appreciate the sheath that can sometimes encase the biceps. Please see the accompanying video at Courtesy of David McCall, M.D., and Stephen Snyder, M.D.

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