Clustered localized pigmented villonodular synovitis.
The localized form of pigmented villonodular synovitis (PVNS) is a rare pathologic entity characterized by limited involvement of the synovium. In the knee joint, which is the most commonly affected joint, the disorder generally presents as a single nodular lesion, or rarely as 2 or 3 multiple nodular lesions into the joint. We report 2 cases of localized PVNS in which multiple nodules were clustered in a limited patella fat pad area. Clustered, multiple nodular lesions in a limited area suggested to us to consider a variant of localized forms.
Kim
Ryuh-Sup
RS
Department of Orthopaedics, INHA University Hospital, INHA University College of Medicine, Incheon, Korea.
Kang
Joon-Soon
JS
Jung
Jae-Hoon
JH
Park
Sun-Won
SW
Park
In-Suh
IS
Sun
Seung-Hoon
SH
D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D010173:Palpation; D010329:Patella / Q000033:anatomy & histology; D016059:Range of Motion, Articular; D013586:Synovitis, Pigmented Villonodular / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome