Fig. 8.121 Mastoid antrum and surrounding bone. A. Diagram.
B. High-resolution CT scan of left ear (petrous temporal bone).
BAditus to mastoid antrumTegmen tympaniEpitympanic recessPharyngotympanic tubeMiddle earMastoid processCochleaMiddle earExternal auditorymeatusMastoid air cellsMastoid air cellsMastoid antrumA