title: [The role of angiography in diagnosis and surgical treatment of patients with juvenile angiofibroma of the nasopharynx].
abstract: Angiography was made in 30 patients with nasopharyngeal tumors. 22 of them had juvenile nasopharyngeal angiofibroma (JNA), 8 patients had early cancer. The analysis of angiograms has shown that coronary arteries system has a certain angiographic picture and characteristic anatomic relations with nasopharyngeal tumors. Changes in vascular picture suggest some direct and indirect angiographic signs pointing to the presence of vessels carrying blood to the tumor and are characterized by the following signs: disposition of the vessels, changed vascular caliber, vascular infiltration, newly established vascular net of tumor type and avascular zone in tumor stroma, delay of contrast substance in tumor stroma. Digital subtraction angiography has an essential role in estimation of possibility of collateral cerebral circulation in some patients with JNA advancing intracranially. For safe surgical intervention such patients need occlusion of internal carotid artery siphon.
authors.forename: R M
authors.initials: RM
authors.lastname: Rzaev
mesh_terms: D000293:Adolescent; D018322:Angiofibroma / Q000175:diagnosis* / Q000601:surgery*; D000792:Angiography / Q000379:methods*; D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D009367:Neoplasm Staging