title: Lipoma arborescens affecting multiple joints.
abstract: Lipoma arborescens is a rare benign intra-articular lesion of unknown etiology that usually involves the suprapatellar pouch of the knee joint. Clinically, the most common finding is a slow-growing painless swelling, accompanied by intermittent effusion of the joint. We report a case of a multifocal lipoma arborescens localized in the knees and the hips in a 24-year-old man, initially mimicking an inflammatory arthropathy. The diagnosis of lipoma arborescens was made by magnetic resonance imaging of the hips and the knees. Under arthroscopic guidance, the synovial biopsy of the right knee disclosed the specific histological signs of lipoma arborescens. As far as we know, this is the third case of multifocal lipoma arborescens reported in the English literature.
authors.affiliation: Department of Rheumatology, EPS Monastir, Monastir, Tunisia. ismail.bejia@lycos.com
authors.forename: Ismail
authors.initials: I
authors.lastname: Bejia
authors.forename: Mohamed
authors.initials: M
authors.lastname: Younes
authors.forename: Adnene
authors.initials: A
authors.lastname: Moussa
authors.forename: Mourad
authors.initials: M
authors.lastname: Said
authors.forename: Mongi
authors.initials: M
authors.lastname: Touzi
authors.forename: Naceur
authors.initials: N
authors.lastname: Bergaoui
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis*; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology; D008068:Lipomatosis / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging / Q000473:pathology; D013583:Synovial Membrane / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed