Juvenile Nasopharyngeal Angiofibroma DEFINITION SITE OF ORIGIN PATHOGENESIS HISTOPATHOLOGY CLINICAL FEATURES FISCH STAGING CLASSIFICATION: DIFFERENTIAL DIAGNOSIS MANAGEMENT (Investigations and Treatment) COMPLICATIONS

COMPLICATIONS DEFINITION Benign, biologically progressive, highly vascular, high incidence of persistence and recurrence. 0.5% of all neoplasms of head and neck. Hippocrates described a polyp in the nose which weeped blood. Finally Friedberg in 1940 used the term Angiofibroma. Sphenopalatine foramen (Usually Superior lip of the sphenopalatine foramen at the junction of the Pterygoid Process of the Sphenoid Bone and the Sphenoid Process of the Palatine Bone) Exclusively in Juvenile males (7 to 21years). Rarely seen below 7yrs of age. Extranasopharyngeal angiofibroma is extremely rare and tends to occur in older patients, predominately in females, but the tumor is less vascular and less aggressive than juvenile nasopharyngeal angiofibroma (JNA).