Juvenile nasopharyngeal angiofibromas (staging)

Staging of juvenile nasopharyngeal angiofibromas is performed with cross-sectional imaging and relies on the identification of local tumor extent, and invasion of adjacent spaces. For a discussion of this entity please refer to the parent article: juvenile nasopharyngeal angiofibroma.

The staging system proposed by Sessions et al.  is the most commonly used and divides tumors into three stages:

• stage I
  • Ia: limited to nasal cavity/nasopharynx
  • Ib: extension into one or more paranasal sinuses
• stage II
  • IIa: minimal extension through sphenopalatine foramen into pterygomaxillary fossa
  • IIb: fills pterygomaxillary fossa bowing the posterior wall of the maxillary antrum anteriorly or extending into the orbit via the inferior orbital fissure.
  • IIc: extends beyond pterygomaxillary fossa into infratemporal fossa (modified by Radkowski )
• stage III: intracranial extension

Siehe auch:

• Juveniles Angiofibrom