Juvenile Nasopharyngeal Angiofibroma

  • Etiology: benign but aggressive vascular tumor
  • Imaging: arises from fibrovascular stroma on posterolateral nasal wall adjacent to sphenopalatine foramen and extends into pterygopalatine fossa to masticator space, extends intracranially via pterygopalatine fossa, supplied usually by external carotid artery
  • Clinical: adolescent male with epistaxis

Radiology Cases of Juvenile Nasopharyngeal Angiofibroma

CT and angiogram of juvenile nasopharyngeal angiofibroma
Axial CT without contrast of the face (above) shows a large left sided sinonasal soft tissue mass. Early (below left) and later (below right) lateral images from a carotid angiogram show the mass to be hypervascular.