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Updated: May 11, 2026

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach
Published on: October 20, 2023
Imaging of cysts and bursae about the knee
Lynne S Steinbach1, Kathryn J Stevens
1University of California San Francisco, San Francisco, CA 94143-0628, USA. lynne.steinbach@ucsf.edu
Abstract:
Cystic lesions are common around the knee and are often encountered as an incidental finding on routine magnetic resonance imaging examinations. The clinical presentation of cysts and other fluid collections is variable, depending on their size, location, and relationship to adjacent anatomic structures. This article reviews the anatomy, etiology, clinical presentation, and imaging features of commonly occurring cystic lesions around the knee and discusses some of the potential pitfalls that may be encountered in clinical practice.
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