Figure 4

Surgeon's lateral view of EAM

Lateral view of EAM
Figure 4. Surgeon?s lateral view of EAM after the cartilaginous ear canal has been excised. A thin rim of cartilage remains attached at the EAM. Note the location of the facial nerve and stylomastoid foramen. Arrow points to a prominent ridge (a consistent landmark) dividing the EAM from the foramen.