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Case report

Fine Needle Aspiration Cytology of Ganglion Cyst of the Knee

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Ganglion cysts are benign soft tissue formations arising from the joint capsule or tendon sheath containing mucinous fluid. Most common locations are on the dorsum of the wrist, palm, and the dorsolateral aspect of the foot. Ganglion cysts within the knee joint are unusual findings and may produce clinical manifestations which mimic internal derangement of the knee. We present here a case of 85-year-old female came with complaints of swelling near the right knee. On examination the swelling was seen in medial aspect of right knee about 7x8cm. Fine Needle Aspiration was done and 2ml of gelatinous material obtained. Cytomorphological features are suggestive of Ganglionic cyst of Right Knee, which was then correlated and confirmed by MRI. Ganglion cyst of the knee usually present in locations atypical for popliteal cysts. It is important to derive the cystic nature of the lesion and its association with intra-articular diseases, for which FNAC plays an important role.


Ashi Verma, Aarthi KB, Prem K Garg, Swati Singh, Mayurika S Tyagi, Abhishek Pathre, Rajiv K Gupta. Fine Needle Aspiration Cytology of Ganglion Cyst of the KneeCase report. Cardiometry; Issue 25; December 2022; p.1385-1387; DOI: 10.18137/cardiometry.2022.25.13851387; Available from:


Ganglion cyst,  Knee joint,  FNAC,  Cystic lesion
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