title: Occurrence of juvenile angiofibroma in middle age.
abstract: A case of juvenile angiofibroma occurring in a male patient of 49 years is described. Histopathology and oncogenesis are discussed.
mesh_terms: D000367:Age Factors; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D007674:Kidney Diseases / Q000188:drug therapy; D008107:Liver Diseases / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000473:pathology*; D013739:Testosterone / Q000009:adverse effects
chemical_list: D013739:Testosterone