Temporal bone is best studied by dissecting it step by step

1. Dr ZEESHAN AHMAD
SR (Neuro-otology)
Department of Neurosurgery
SGPGIMS, Lucknow

2.  Outline
 Surface landmarks
 Macevens triangle
 Cortical
 Facial nerve surgery, endolymphatic sac
decompression, cochlear implant, trautmans
triangle, labyrinthectomy, IAM vestibular
neurectomy,

22.  Ifracochlear
 Infralabyrinthine
 Precochlear – 3.5mm
 Cochlea
 Tegmen
 ICA
 Infratemporal fossa approach

24.  Translabyrinthine (canal wall-up)
 Transcochlear
 Transotic