Infratemporal Fossa Approach Type C

Part 1: Anatomical Dissection (right side)

Part 2: Clinical Cases (Case 1 and 2)

Highlights (MSB p. 350)

1. Retroauriculo-temporal skin incision
2. Frontal branch of VII exposed
3. Zygomatic arch, temporalis muscle inferiorly displaced
4. Subtotal petrosectomy
5. meningeal artery and mandibular branch of Vth nerve sectioned
6. Inferior displacement of mandibular condyle
7. Pterygoid process and surrounding bone at the skull base removed
8. Maxillary branch of the trigeminal nerve (V) divided
9. Exposure of the internal carotid artery from carotid foramen to foramen lacerum and cavernous sinus
10. Exposure of infratemporal fossa, pterygopalatine fossa, parasellar region and nasopharynx for tumor removal
11. Zygomatic arch rewired into place
12. Operative cavity obliterated with temporalis, retroauriculo-occipital or sternocleidomastoid muscle flaps