1️⃣PCL Ganglia
- PCL ganglia typically appear as well-defined multilocular cysts adjacent to and along the dorsal PCL surface.
- Differential diagnosis should be made from a posteromedial meniscal cyst extending centrally within the joint, predominantly posterior to the PCL.
- Reference: Insights Imaging (2013) 4:257–272
2️⃣Mucoid Degeneration and Ganglia
- Mucoid degeneration and ganglia are likely to represent a continuum of degenerative changes of the PCL.
- Mucoid degeneration is believed to share a common origin with intra-articular ganglia (or ganglion cysts).
- Although the etiology of mucoid degeneration and ganglia is not clearly elucidated, it reflects a continuum of degenerative changes.
- Reference: Acta Radiol. 2017 Mar;58(3):338-343
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