extensor digitorum brevis muscle ( RID3162 )
4 years ago (initial slides) show a ganglion which was reported as arising from the lateral sinus tarsi related to the inferior extensor retinaculum (not true). He returned with recurrent symptoms and a smaller ganglion which clearly arises from a chronic partial tear of a tendon slip of the ext digitorum brevis. I saw a recent similar case, but dont recalling seeing this much before (probably missed it).
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