Pigmented villonodular synovitis of thoracic facet joint presenting as rapidly progressive paraplegia.
Pigmented villonodular synovitis (PVNS) is a proliferative disorder of the synovial membrane of uncertain etiology. It commonly affects synovial joints of the appendicular skeleton and rarely affects the spine. We present the case of a young man presenting with a rapidly progressive myelopathy due to spinal cord compression by PVNS arising from a thoracic facet joint, which finally resulted in paraplegia.The spinal location of PVNS has been seldom emphasized in the rheumatologic literature. PVNS should be considered as a possible cause of soft tissue masses arising from the facet joints, with variable degrees of nerve root or spinal cord compression.
del Carmen Baena-Ocampo
Leticia
L
Department of Pathology, Instituto Nacional de Rehabilitación, Mexico City, México.
Rosales Olivares
Luis M
LM
Arriaga
Norma Marín
NM
Izaguirre
Aldo
A
Pineda
Carlos
C
D000293:Adolescent; D006801:Humans; D007796:Laminectomy; D008297:Male; D010264:Paraplegia / Q000209:etiology*; D011859:Radiography; D013586:Synovitis, Pigmented Villonodular / Q000150:complications* / Q000473:pathology* / Q000601:surgery; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging* / Q000601:surgery