Jugular Schwannoma Classification



A Tumor confined to soft tissues of neck

B Primary involvement of the neck with extension up to jugular foramen

C Tumor fills jugular foramen, with resultant bone expansion

C1 No involvement of ICA above carotid foramen

C2 Involvement of the vertical segment of ICA

C3 Involvement of the horizontal segment of the ICA

C4 Tumor extending into foramen lacerum

D Intracranial extension of tumor

De Extradural

Di Intradural extension

< 2-cm extension

>2-cm extension

From Franklin et al.57

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