title: Cervical hibernoma.
abstract: The hibernoma is a rare neoplasm derived from vestigal remnants of brown fat left from early embryologic development. Review of the world literature reveals only 40 cases to which we are adding a report of a tumor arising in the posterior cervical triangle of a 20-year-old man. The distribution, histology and cytochemistry of brown fat and the hibernoma are discussed, and evidence supporting its histogensis is presented.
mesh_terms: D002001:Adipose Tissue, Brown / Q000196:embryology; D000328:Adult; D006258:Head and Neck Neoplasms / Q000196:embryology / Q000473:pathology*; D006801:Humans; D008067:Lipoma / Q000196:embryology / Q000473:pathology*; D008297:Male