鼻腔および上顎洞原発の若年性血管線維腫

抄録

Two cases of juvenile angiofibromarising at sites other than the nasopharyngeal region are reported.
Since almost all such tumors occur in the nasopharynx our recent cases, one originating in the maxillary sinus and the other in the nasal cavity, are considered very rare.
Although the etiology of the tumor is still controversial, many researchers agree theat the tumor is a true neoplasm consisting of varying amounts of fibrous and vascular components. It is noteworthy that Girgis and others, in their recent publication, suggested that angiofibroma is a tumor arising from paraganglionic tissue, thus the tumor can occur in any area supplied by the internal maxillary artery inclusive of the nasal cavity and nasopharynx, and that the development of the tumor may have some connection with hormonal disturbances.