Examination revealed that a piece of plastic that fits snugly in the earpiece of the hearing aid had become wedged between the anterior external auditory canal wall and the tympanic membrane annulus (figure).

The remaining material is organized by anatomy, with seven chapters focusing on the external auditory canal and pinna; the middle ear and mastoid; temporal bone vascular anatomy, anomalies, and disease, with an emphasis on pulsatile tinnitus; the inner ear and otodystrophics; temporal bone trauma; anatomy and development of the facial nerve; and the vestibulocochlear nerve, with an emphasis on the normal and diseased internal auditory canal and cerebellopontine angle.

Otomar Otic Drops is a prescription drug product labeled for the treatment of superficial infections of the external auditory canal complicated by infection or to temporarily relive itching in the auditory canal.