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Pigmented villonodular synovitis presenting as a popliteal cyst
Israel Journal of Medical Sciences
|September 1, 1980
Summary
A rare case of giant knee swelling was caused by a large popliteal cyst. Histology confirmed pigmented villonodular synovitis, highlighting the role of arthrography in diagnosis.
Area of Science:
- Orthopedic Surgery
- Diagnostic Imaging
- Pathology
Background:
- Popliteal cysts, often associated with intra-articular pathology, can present as significant soft tissue masses.
- Giant cystic masses around the knee require careful diagnostic evaluation.
Observation:
- A rare case of giant soft tissue swelling around the knee joint is presented.
- A large popliteal cyst with muscular infiltration into the calf was observed.
Findings:
- Arthrography proved valuable in diagnosing the extent of the popliteal cyst.
- Histological examination confirmed the mass as pigmented villonodular synovitis.
Implications:
- This case underscores the importance of considering pigmented villonodular synovitis in the differential diagnosis of large popliteal cysts.
- Radical surgical excision is presented as the preferred treatment modality for such extensive lesions.