the first segment in the internal auditory canal is best visualized in the sagittal plane , the labyrinthine segment and geniculate ganglion in the coronal and transaxial planes , the tympanic portion in the sagittal plane , the genu , between the tympanic and mastoid portion , in the sagittal plane , and the mastoid portion and the stylomastoid foramen in the coronal and sagittal planes .
C0222711
internal auditory canal
C0022889
labyrinthine