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Staging of juvenile nasopharyngeal angiofibromas

Dr Yuranga Weerakkody and Dr Frank Gaillard et al.

Staging of juvenile nasopharyngeal angiofibromas is performed with cross-sectional imaging, and relies on identification of local tumour 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 ³ is the most commonly used and divides tumours 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 maxiallary antrum anteriorly or extending into the orbit via the inferior orbital fissure.
- IIc : extends beyond pterygomaxillary fossa into infratemporal fossa (modified by Radkowski ⁴)
stage III : intracranial extension

References

Synonyms & Alternative Spellings

Synonyms or Alternative Spelling	Include in Listings?
Sessions staging system for juvenile nasopharyngeal angiofibromas	✗
Juvenile nasopharyngeal angiofibroma staging	✓
Juvenile nasopharyngeal angiofibroma (JNA) staging	✗