title: [Pseudo-tumoral aspect of a post-traumatic digital synovitis].
abstract: A case is described of post-traumatic subacute synovitis of a finger exhibiting pseudo-tumoral appearance and radiographic bony changes. Arteriography showed non-malignant hypervascularisation suggesting a benign synovial tumour. Biopsy established a diagnosis of simple subacute synovitis. The swelling regressed spontaneously over the subsequent months. In the case of simple post-traumatic subacute synovitis differential diagnosis should take into account the possibility of villonodular synovitis which involves histiocyte proliferation.
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005383:Finger Injuries / Q000150:complications*; D005384:Finger Joint; D006801:Humans; D009369:Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D013583:Synovial Membrane; D013585:Synovitis / Q000000981:diagnostic imaging* / Q000209:etiology
vernacular_title: Aspect pseudo-tumoral d'une synovite digitale post-traumatique