title: Parosteal lipoma with hyperostosis: report of two pathologically proven cases evaluated by magnetic resonance imaging.
abstract: The authors describe two cases of parosteal lipoma, an infrequent benign tumour, associated with hyperostosis. The first patient presented with a mass in the posterior neck, the other with one in the proximal forearm. Radiologic diagnosis was facilitated by magnetic resonance imaging (MRI). The MRI images showed the characteristic features of a parosteal lipoma, as well as hyperostotic areas that remained of low signal intensity in both T1-weighted and T2-weighted sequences. MRI is both sensitive and specific for diagnosing these lesions and provides excellent depiction of the anatomic features before surgery.
authors.affiliation: Department of Radiology, University of California, Davis School of Medicine, Sacramento.
authors.forename: A
authors.initials: A
authors.lastname: Laorr
authors.forename: A
authors.initials: A
authors.lastname: Greenspan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002574:Cervical Vertebrae / Q000473:pathology*; D005260:Female; D006801:Humans; D015576:Hyperostosis / Q000175:diagnosis* / Q000473:pathology; D008067:Lipoma / Q000175:diagnosis* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000473:pathology; D010521:Periosteum / Q000473:pathology*; D011884:Radius / Q000473:pathology*; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000473:pathology