Multifocal pigmented villonodular synovitis coexisting in both the knee joint and the patella: a case report and literature reviewReport as inadecuate




Multifocal pigmented villonodular synovitis coexisting in both the knee joint and the patella: a case report and literature review - Download this document for free, or read online. Document in PDF available to download.

BMC Musculoskeletal Disorders

, 18:293

Orthopedics and biomechanics

Abstract

BackgroudPigmented villonodular synovitis PVNS is an uncommon entity of proliferative lesion of the synovium, presenting with different clinical signs and symptoms. PVNS rarely forms an osteolytic lesion in a bone. Here we report a unique case of PVNS with a nodular lesion in the left patella.

Case presentationA 37-year-old female was referred to our hospital with complaints of ongoing left knee pain and a painful and palpable mass in her left popliteal fossa. MRI demonstrated a nodular lesion in the left patella, diffuse affected synovial tissue in the left knee and an extra-articular mass in the left popliteal fossa. After a primary diagnosis of PVNS had been established, combined arthroscopic synovectomy and open resection were performed. The postoperative pathological diagnoses of the resected mass from the popliteal fossa, the affected synovial tissue and the lesion in the patella were consistent with PVNS. At 1-year follow-up, no evidence of recurrence was noted.

ConclusionsBased on brief literature review of PNVS, we presented a very rare case of PVNS with a nodular lesion in the left patella, diffuse affected synovial tissue in the left knee and an extra-articular mass in the left popliteal fossa.

KeywordsPigmented villonodular synovitis Giant cell tumor of tendon sheath Localized form Multifocal lesions Patella Popliteal fossa Case report Abbreviations CSF-1Colony-stimulating factor 1

MRIMagnetic resonance imaging

PVNSPigmented villonodular synovitis

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Author: Mingxuan Gao - Hong Li - Xiaoyan Liang - Xiaoyan Fu - Xusheng Li

Source: https://link.springer.com/







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