Craniocervical Approach to Jugular Foramen Cervical dissection

Internal carotid artery Internal jugular vein Hypoglossal nerve Vagus nerve Spinal accessory nerve Glossopharyngeal nerve Parotid segment of facial nerve Cranial dissection" Mastoid decortication Antrum Digastric ridge Lateral semicircular canal Posterior semicircular canal Fallopian canal Sigmoid sinus Superior semicircular canal Trautmann's triangle Suboccipital craniotomy C. Jugular foramen dissection Ligate jugular vein Ligate sigmoid sinus

Remove jugular vein/sigmoid sinus (preserve medial wall) Occlude inferior petrosal sinus Identify proximal CN VII to XII

" Adapted from Miller et al.10

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