Sonographic findings of hibernoma. A report of two cases

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...

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Bibliographic Details
Published in:Journal of clinical ultrasound 2005-07, Vol.33 (6), p.298-301
Main Authors: Hardes, Jendrik, Scheil‐Bertram, Stefanie, Hartwig, Erich, Gebert, Carsten, Gosheger, Georg, Schulte, Michael
Format: Article
Language:English
Subjects:
Adipose Tissue, Brown - diagnostic imaging
Adult
Biopsy, Needle - methods
brown fat tumor
Buttocks - pathology
color Doppler sonography
Contrast Media - administration & dosage
Diagnosis, Differential
Female
Gadolinium DTPA
hibernoma
Humans
Image Enhancement - methods
lipoma
Lipoma - diagnosis
Lipoma - diagnostic imaging
Lipoma - surgery
liposarcoma
Magnetic Resonance Imaging - methods
Male
Rare Diseases
Soft Tissue Neoplasms - diagnosis
Soft Tissue Neoplasms - surgery
soft‐tissue tumor
Tomography, X-Ray Computed - methods
Ultrasonography, Doppler, Color - methods
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Summary: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. © 2005 Wiley Periodicals, Inc. J clin Ultrasound 33:298–301, 2005
ISSN:0091-2751
1097-0096
DOI:10.1002/jcu.20126