title: [Synovial lipoma arborescens].
abstract: The paper describes a case of synovial lipoma arborescens (tree-forming lipoma) of the knee joint. This tumor is a variety of lipomas--a benign tumor composed of mature adipose tissue without signs of atypia. Most investigators regard lipoma as a reactive rather than neoplastic process. X-ray and histological studies should be performed for its differential diagnosis with pigmented villonodular synovitis, synovial chondromatosis, synovial hemangioma, xanthoma, a group of chronic synovitis in rheumatic diseases (rheumatoid arthritis, amyloid arthropathy, psoriatic arthritis). Its final diagnosis is possible only after morphological study.
authors.forename: L A
authors.initials: LA
authors.lastname: Semenova
authors.forename: S G
authors.initials: SG
authors.lastname: Radenska-Lopovok
authors.forename: A P
authors.initials: AP
authors.lastname: Khaplinin
authors.forename: S O
authors.initials: SO
authors.lastname: Malakhova
mesh_terms: D000273:Adipose Tissue / Q000254:growth & development / Q000473:pathology*; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000473:pathology*; D008067:Lipoma / Q000175:diagnosis / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013582:Synovial Fluid