Case Report

Unusual Presentation of Popliteal Cyst on Magnetic Resonance Imaging

Figure 2

Arthroscopic views from the posterolateral portal through the transseptal portal. (a) The synovial fold (SF) was identified using a probe introduced from the posteromedial portal. (b) After removing the synovial fold, a switching rod was inserted between the medial head of the gastrocnemius muscle (MGM) and the semimembranosus muscle (SM), which was the orifice of the popliteal cyst. (c) The orifice of the popliteal cyst was enlarged by resecting the limited parts of the medial head of the gastrocnemius muscle and the semimembranosus muscle. (d) The material inside the cyst was pushed out from behind and removed using forceps.
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