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Localized pigmented villonodular synovitis: three cases of intra-articular knee involvement
Eric Harris1, Bruce Gillingham, Eric Hofmeister
1Orthopedic Department, Naval Medical Center San Diego, Calif 92134-1005, USA.
The Journal of Knee Surgery
|August 29, 2003
Summary
Pigmented villonodular synovitis (PVNS) is a rare synovial tissue condition that can mimic other knee pathologies. This study highlights three unusual knee PVNS cases, including a novel popliteal tendon lesion, emphasizing diagnostic challenges and varied treatments.
Area of Science:
- Orthopedic Surgery
- Musculoskeletal Pathology
- Diagnostic Imaging
Background:
- Pigmented villonodular synovitis (PVNS) is a rare, benign synovial tissue tumor.
- PVNS can present with diverse symptoms, often mimicking other intra-articular conditions.
- Accurate diagnosis frequently requires histological examination due to overlapping clinical presentations.
Observation:
- Presents three unique cases of localized PVNS affecting the knee joint.
- Includes a previously unreported case of PVNS originating from the popliteal tendon.
- Demonstrates the varied clinical manifestations and diagnostic complexities of PVNS.
Findings:
- PVNS can exhibit protean manifestations, challenging diagnosis.
- Histologic examination is crucial for definitive PVNS diagnosis.
- Successful treatment requires tailored approaches based on lesion characteristics.
Implications:
- Highlights the importance of considering PVNS in differential diagnoses for knee pathology.
- Suggests the need for advanced imaging and potentially surgical exploration for obscure cases.
- Contributes to understanding the broad spectrum of PVNS presentation and management.