Lipoblastoma and lipoblastomatosis are rare benign soft-tissue tumoral lesions resembling fetal adipose tissue. A total of 16 cases of lipoblastoma of the neck were reported in the literature, and only 3 were described in the posterior side of the neck. Hibernoma is a rare benign adipose tumor composed of brown fat cells and only about ten cases occurring in the cervical area have been reported...

A 24-year-old woman presented with a 5-month history of a left flank mass that was painful on palpation. Magnetic resonance imaging revealed a 10.0 × 6.0 × 2.5 cm mass consistent with lipoma. A fatty lobulated mass was excised and subjected to H&E staining and immunohistochemical analyses. The specimen consisted of mature univacuolated adipocytic cells, with intermixed multivacuolated eosinophi...

Hibernoma is a rare benign tumor that becomes from the vestiges of fetal brown adipose tissue. It can be located on different regions body, being tight most frequent. Retroperitoneal region approximately 9.4%. The first person to describe this histological type was Merkel. To present, there are only described 25 cases location. has slowly growth, so it normally asymptomatic, and usually present...

A 42 year old male presented with swelling in the right posterior cervical region for a period of 2 months. Palpation revealed a soft, non tender, mobile swelling measuring 2 x 1 cms. An elective excision biopsy was performed. Gross examination showed a yellow to pale brown soft mass. On microscopy, a well circumscribed tumour composed of two populations of cells(uni-vacuolated white adipocytes...

Intriduction . Hibernomas account for less than 2 % of all benign lipomatous tumors and 1 tumors. They are usually found in 20–40-year old adults (the average age patients is 38 years). The clinical manifestations painless soft tissue mass that mostly slow growing; rapid growth only a small number patients. We present case successful surgical treatment pathologically confirmed rare tumor large ...