title: Localized form of pigmented villonodular synovitis of the knee: the meniscal mime.
abstract: The localized form of pigmented villonodular synovitis of the knee is a rare condition with non-specific symptoms. This makes diagnosis especially difficult when the meniscus is affected. A full assessment with several imaging modalities can help support the preoperative diagnosis. But in the case reported here, the full clinical and paraclinical assessment (X-rays, CT arthrography and MRI) was wrong--the localized form of pigmented villonodular synovitis had mimicked a lateral meniscus injury and was only detected during arthroscopy. The lesion was excised surgically and the diagnosis was confirmed through postoperative histopathology.
authors.affiliation: CMC Paris V, 36, boulevard Saint-Marcel, 75005 Paris, France. Electronic address: nbouguennec@gmail.com.
authors.forename: N
authors.initials: N
authors.lastname: Bouguennec
authors.affiliation: CMC Paris V, 36, boulevard Saint-Marcel, 75005 Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Meyer
authors.affiliation: Espace Médical Vauban, 2a, avenue de Ségur, 75007 Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Graveleau
mesh_terms: D000328:Adult; D001182:Arthroscopy; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000601:surgery*; D000070600:Tibial Meniscus Injuries
keywords: Knee; Localized form; Meniscal tear; Pigmented villonodular synovitis