title: Sonographic findings of hibernoma. A report of two cases.
abstract: We present 2 cases of hibernoma, a rare lipomatous tumor arising from brown fat tissue. In each case, a hyperechoic mass in comparison to surrounding musculature combined with elevated vascularization was highly suggestive of a liposarcoma. As a rule, malignancy cannot be excluded safely by imaging modalities, and a preoperative biopsy should be performed. Although rare, hibernomas should be considered in the differential diagnosis of lipomatous soft-tissue tumors.
authors.affiliation: Department of Orthopedics, Westfälische Wilhelms-Universität, Albert-Schweitzer-Str. 33, 48149 Münster, Germany.
authors.forename: Jendrik
authors.initials: J
authors.lastname: Hardes
authors.forename: Stefanie
authors.initials: S
authors.lastname: Scheil-Bertram
authors.forename: Erich
authors.initials: E
authors.lastname: Hartwig
authors.forename: Carsten
authors.initials: C
authors.lastname: Gebert
authors.forename: Georg
authors.initials: G
authors.lastname: Gosheger
authors.forename: Michael
authors.initials: M
authors.lastname: Schulte
mesh_terms: D002001:Adipose Tissue, Brown / Q000000981:diagnostic imaging*; D000328:Adult; D001707:Biopsy, Needle / Q000379:methods; D002081:Buttocks / Q000473:pathology; D003287:Contrast Media / Q000008:administration & dosage; D003937:Diagnosis, Differential; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008067:Lipoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D035583:Rare Diseases; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods; D018615:Ultrasonography, Doppler, Color / Q000379:methods*
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA