Hibernomas are extremely rare benign tumors of adipose tissue characterized by an admixture of brown fat cells with granular, multivacuolated cytoplasm and white fat cells. Hibernomas account for 1.6% of benign adipose tissue tumors and approximately 1.1% of all adipocytic tumors. Around 10% of these cases are intramuscular. It was initially described in the early 1900s as being composed of bro...

Hibernomas are extremely rare benign tumors of adipose tissue characterized by an admixture of brown fat cells with granular, multivacuolated cytoplasm and white fat cells. Hibernomas account for 1.6% of benign adipose tissue tumors and approximately 1.1% of all adipocytic tumors. Around 10% of these cases are intramuscular. It was initially described in the early 1900s as being composed of bro...

BACKGROUND Hibernoma is a rare benign fat-forming soft tissue tumor that differentiates similar to brown fat, hence an origin from remnants of fetal brown adipose tissue has been proposed. Mainly young adults are affected, usually without significant clinical symptoms. MATERIAL AND METHODS We report on four patients with hibernomas, who were treated at our hospital during the last 10 years. T...

Hibernoma is a slow growing, rare benign tumour, which derived from brown adipose tissue. This tumour is usually found in the area where foetal fat persists such as back, axilla, retro peritoneum and thorax. Hibernoma rarely occurs in the retro pharynx. We report a case of retropharyngeal hibernoma in a 44-year-old male. He presented with obstructive symptoms for six months and a retropharyngea...

BACKGROUND Hibernoma is a rare, benign, soft tissue tumor arising from brown fat that cannot be distinguished from other lipogenic tumors on computed tomography and magnetic resonance imaging (MRI) scans. On the other hand, the image of hibernoma on 18F-fluorodeoxyglucose positron emission tomography (18F-FDG-PET) is different from that of other lipogenic tumors. However, fewer studies have inv...

Background Hibernoma is a rare soft tissue tumor stem from persistent fetal brown fat tissue. This benign tumor may occasionally occur in head and neck area and, in most cases, is characterized by an asymptomatic slow growth. Case presentation We presented an uncommon case of hibernoma of the posterior cervical triangle occurring in a 30-year-old man referred to the department of otolaryngolo...

Hibernoma is a rare benign adypocyte tumour of brown fat. We report on 4 patients with hibernoma of the thigh. Clinical features and magnetic resonance imaging suggested the tumours were liposarcomas, but biopsy yielded the diagnosis of hibernoma. All 4 patients underwent complete excision of the tumour and had no recurrence.

Hibernoma is an unusual tumour of brown adipose tissue. Brown adipose tissue is common in mammalian hibernating animals and acts as a thermogenic organ. A first case of hibernoma was reported in 1906 by Merkel. This tumour usually arises in the back, shoulder region, mediastinum, retroperitoneum and in the neck. The neck location of hibernomas is rare and only 18 cases of cervical hibernoma hav...