[Retrospective clinicopathological study of juvenile nasopharyngeal angiofibroma in a 20-year case load].

From the files of our institution 7 cases originally diagnosed as juvenile nasopharyngeal angiofibroma have been reviewed. Only 3 cases proved to be juvenile nasopharyngeal angiofibroma on revision, in one case inflammatory polyp, in two cases pyogenic granuloma and in one case richly vascular granulation tissue was the correct diagnosis. The clinical and histopathological aspects of the differential diagnosis of juvenile nasopharyngeal angiofibroma are discussed. All patients with true juvenile nasopharyngeal angiofibroma were males. The diagnostic usefulness of the recognition of morphological features suggesting erectile tissue are stressed.