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
  • DDX:
  • Complications:
  • Treatment:
  • Clinical: Classic presentation is 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.
MRI of pediatric juvenile nasopharyngeal angiofibroma
Coronal T2 MRI of the brain (above) shows a large high signal intensity nasopharygeal mass that on coronal T1 MRI with contrast (below) enhances avidly and uniformly. There was no evidence of intracranial extension.