title: Does malignant hibernoma exist?
abstract: The authors present a case of a highly atypical, possibly malignant, hibernoma. It presented as a deep-seated tumor in the retropharynx of a 57-year-old male. A review of possible similar cases is presented. The patient is without recurrence 4 years after complete excision and radiation therapy. The tumor must be differentiated from liposarcoma. The clinical potential must await the accumulation and observation of additional cases.
mesh_terms: D003937:Diagnosis, Differential; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008067:Lipoma / Q000473:pathology*; D008080:Liposarcoma / Q000473:pathology; D008297:Male; D008875:Middle Aged