title: [Coincidence of Lipoma and Liposarcoma of the Right Hand in an 84-Year-Old Patient: A Case Report].
abstract: Summary. We report the case of an 84-year-old patient presenting with a painless tumor between the thumb and the index finger. MRI showed a clearly defined tumor of the thenar eminence with a centrally localized more solid structure. There was a signal enhancement after intravenous administration of contrast medium. We performed a local resection of the tumor. Histologically, we found a lipoma with a centrally localized liposarcoma. We discuss the rare case of malignant transformation of a lipoma. In long-standing large lipomas we suggest regular controls by MR imaging.
authors.affiliation: Handchirurgie und Plastische Chirurgie, Chirurgische Klinik mit Poliklinik der Universität Regensburg. baer.wolfgang@t-online.de
authors.forename: W
authors.initials: W
authors.lastname: Baer
authors.forename: P
authors.initials: P
authors.lastname: Schaller
authors.forename: S
authors.initials: S
authors.lastname: Ruf
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D006225:Hand / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008067:Lipoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*
vernacular_title: Koinzidenz von Lipom und Liposarkom der rechten Hand bei einem 84-jährigen Patienten: Eine Falldarstellung.