Hibernoma is an uncommon benign fatty tumor that arises from the vestiges of fetal brown fat. We present a case report of a hibernoma of the neck in an asymptomatic 19-year-old girl and describe the important imaging findings. Computed tomography (CT) shows a well defined hypodense mass with septations. Magnetic resonance imaging (MRI) shows intermediate T1 and bright T2 signal of the mass and ...

Hibernoma is a rare benign tumour of brown fat. It is also known as lipoma of brown adipose tissue, lipoma glandular and atypical lipoma. The hibernoma was first described by Merkelin 1906, who called it Pseudolipoma. The name hibernoma is derived from its histological similarity to the brown fat of hibernating animals. They have been found in the neck, back, popliteal space, thighs, axilla, ab...

BACKGROUND Hibernoma is a rare benign tumor of adults that is composed of multivacuolated adipocytes resembling brown fat cells. Hibernoma typically occurs in soft tissue, and intraosseous examples are very rare. Intraosseous hibernomas can radiologically mimic metastatic carcinoma and other tumorous conditions. METHODS To collect the intraosseous hibernomas, we searched the pathologic databa...

loculated fat cells morphologically similar to the hibernating gland tissues found in animals was first recognized 95 years ago. It was subsequently termed “hibernoma.” In 1966, 38 cases had been recorded, 4 of which were intrathoracic. Thirty years later, approximately 100 cases had been reported, of which only 7 were intrathoracic. A recent review of the English literature reveals 13 intratho...

Hibernoma is a rare benign tumor considered to arise from remnants of fetal brown adipose tissue. It tends to occur in sites where brown fat persists beyond fetal life, such as the interscapular region, but can occur in sites where brown fat is usually absent in adults. Clinicallywell, hibernomas are slow-growing, asymptomatic tumors. However, unlike lipomas, MRI findings sometimes mislead clin...

Hibernomas are benign tumors with morphological features resembling brown fat. They consistently display cytogenetic rearrangements, typically translocations, involving chromosome band 11q13. Here we demonstrate that these aberrations are associated with concomitant deletions of AIP and MEN1, tumor suppressor genes that are located 3 Mb apart and that underlie the hereditary syndromes pituitary...

We present a glucose avid hibernoma hampering the re-staging of advanced breast cancer with FDG PET and summarize the results of the available literature. FDG PET, CT, MRI, ultrasound and histology were performed according to standardized protocols in our case. The literature search was performed on PubMed.gov. The literature search revealed 29 relevant publications starting with 2002. The high...