title: Necrotic lipoma at the posterior thigh mimicking liposarcoma.
abstract: A lipoma is one of the most common benign tumours and can develop at any location in the body. Lipomas present characteristic imaging features; hence, they are easy to identify on CT and MRI. However, cases of necrotic lipoma are rarely encountered; therefore, information on the imaging findings of necrotic lipomas is scarce. In the present report, we describe the case of a 63-year-old man with necrotic lipoma in the deep layer of the posterior thigh, which resembled a liposarcoma on imaging. To the best of our knowledge, only a few reports on necrotic lipoma on the extremities have been published.
authors.affiliation: Orthopaedic Department, The University of Tokyo Hospital, Tokyo, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ohki
authors.affiliation: Department of Pathology, The University of Tokyo Hospital, Tokyo, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Ushiku
authors.affiliation: Orthopaedic Department, The University of Tokyo Hospital, Tokyo, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Shinoda
authors.affiliation: Orthopaedic Department, The University of Tokyo Hospital, Tokyo, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kobayashi
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D008067:Lipoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008080:Liposarcoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D009336:Necrosis / Q000473:pathology; D013848:Thigh / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods
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