Localized pigmented villonodular synovitis with hemorrhage arising from lateral meniscocapsular junction: A case report

Abstract

Pigmented villonodular synovitis (PVNS) is a rare condition. [1] There are two types of PVNS. Localized (LPVNS) and diffuse (DPVNS). [2] The localized form is a proliferative disorder of the synovial tissue of the joint, bursa, or tendon sheathes. Localized PVNS of knee usually appears as a single pedunculated mass, or as a sessile mass, less frequently. [3] Localized PVNS presents nonspecific symptoms and typically ÖZ Pigmente villonodüler sinovit (PVNS) sıklıkla tendon kılıflarında, bursada veya eklem sinovyumunda bulunan benign, tümörümsü bir durumdur. Etkilenen eklemin tüm sinovyumuna yayılan diffüz tipten farklı olarak, lokalize PVNS'nin sinovyumu görece normal bir görünüm gösterir. Nonspesifik semptomlar sergiler ve tipik olarak uzun bir sürede ilerler fakat akut kilitlenme fenomeni veya diz içi bozukluk semptomları erken evrede aniden başlar. Bu yazıda, dizde lateral menisküsün orta gövdesi ve lateral eklem kapsülü bileşkesinden doğan kapsül içi hemorajisi olan, iyice kapsül içine alınmış lokalize PVNS'li 48 yaşında bir kadın hasta sunuldu. Sinovit genişledi ve sonra lateral eklem boşluğuna ilerleyerek eşzamanlı ağrıya, diz fleksiyon limitasyonuna ve kilitlenmeye neden oldu. Tam artroskopik eksizyon, biyopsi ve punch ve motorlu tıraşlayıcı ile fokal sinovektomi uygulandı. Cerrahiden bir gün sonra tam diz hareket açıklığı ile tam ağırlık kaldırmaya izin verildi. Kilitlenme mekanik semptomu ve şiddetli ağrı kayboldu. Cerrahiden bir ay sonraki klinik takipte semptomlar artık yoktu.

Knee locking caused by osteochondroma of the proximal tibia adjacent to the pes anserinus: A case report

“…The most common cause of knee locking is intra-articular lesions; meniscus injuries are the most frequent, followed by ligament injuries and intra-articular free bodies[ 4 ]. Synovial hemangiomas, tenosynovial giant cell tumors, gouty arthritis, lipomas, and intra-articular ganglions are less common causative diseases[ 5 - 7 ]. Conversely, knee locking due to extra-articular disease is uncommon; post-fracture deformity and osteochondroma have been reported as causative conditions[ 8 - 10 ].…”

An abrupt-onset shoulder joint subluxation and pseudoparalysis caused by intraarticular pigmented villonodular synovitis: A case report

“…It is thought that these two cases share the common feature of the symptoms being caused by a similar mechanism. [9] Pigmented villonodular synovitis has localized and diffuse forms: the diffuse form is often an intraarticular lesion in the shoulder joint, and there have been two exceptional reports of complete extraarticular lesions. [10,11] Localized PVNS involving the shoulder joint and biceps tendon was reported by Sipahioglu et al [12] In certain cases, the diffuse form is accompanied by a rotator cuff tear (RCT), which is not found in the localized form.…”

Giant Cell Tumor of Tendon Sheath in Knee Capsule

“…A histologic examination is the definitive diagnostic workup necessary for establishing such a disease. The lesion is characterized by a fibrous stroma with a proliferation of the synovial tissue as villi or nodules, and the presence of irregular-shaped multinucleated giant cells within the hyaline stroma [ 9 ].…”