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MRI of a hibernoma
M A Cook1, M Stern, R D de Silva
1Department of Radiology, Saint Vincent's Medical Center of Richmond, Staten Island, NY, 10310, USA.
Journal of Computer Assisted Tomography
|March 1, 1996
Summary
Hibernomas are benign tumors originating from brown fat, typically appearing as slow-growing masses. Their fatty and heterogeneous appearance on imaging can resemble liposarcomas, necessitating a biopsy for accurate diagnosis.
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Hibernomas are rare, benign neoplasms originating from vestigial brown adipose tissue.
- They commonly present as asymptomatic, slow-growing masses, often in the neck, shoulder, or mediastinum.
Observation:
- Hibernomas exhibit a heterogeneous appearance on computed tomography (CT) and magnetic resonance (MR) imaging.
- The presence of fat within these lesions can lead to imaging features that mimic malignant tumors, such as liposarcoma.
Findings:
- The characteristic imaging findings of hibernoma can be mistaken for liposarcoma due to overlapping features.
- Definitive diagnosis relies on histopathological examination of a biopsy specimen.
Implications:
- Accurate differentiation of hibernoma from liposarcoma is crucial for appropriate patient management and treatment planning.
- Understanding the imaging characteristics of hibernoma aids radiologists in differential diagnosis, potentially avoiding unnecessary aggressive interventions.