Juvenile Nasopharyngeal Angiofibroma
Overview
Juvenile nasopharyngeal angiofibroma (JNA) is a benign vascular neoplasm of the nasal cavity and nasopharynx that classically presents in adolescent boys.
Pathophysiology
Relevant Anatomy
Disease Etiology
Genetics
Histology
Diagnosis
Patient History
Physical Examination
Laboratory Tests
Imaging
[Text about imaging choices]
There are several classifications for JNAs based on imaging findings.
| Classification System | Stage I | Stage II | Stage III | Stage IV | Stage V |
|---|---|---|---|---|---|
| Andrews[1] | Confined to NP | Invading one of the following with evidence of bony erosion: PPF, MS, ES, or SS | Invading ITF or orbit IIIa: No intracranial extension IIIb: Extradural (parasellar) extension |
Intradural extension IVa: No infiltration of CS, PF, or OC IVb: Infiltration of CS, PF, or OC |
-- |
| Chandler | Confined to NP | Extension into the nasal cavity, SS, or both | Extension into any of the following: antrum, ES, PMF, ITF, orbit, or cheek | Intracranial extension | -- |
Differential Diagnosis
Management
Medical Management
Surgical Management
Outcomes
Complications
Prognosis
References
- ↑ Andrews JC, Fisch U, Aeppli U, Valavanis A, Makek MS. The surgical management of extensive nasopharyngeal angiofibromas with the infratemporal fossa approach. The Laryngoscope. 1989 Apr;99(4):429-37.