title: Metastasizing nasopharyngeal angiofibroma. A case report.
mesh_terms: D002648:Child; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000473:pathology; D009305:Nasopharynx / Q000473:pathology; D009362:Neoplasm Metastasis