Old temporal bone fracture. (Otoscopic Clinic).The otoscopic view is that of a left ear, demonstrating evidence of a basilar skull fracture and two fractures of the temporal bone visible through the external auditory canal external auditory canal n. See ear canal. . The entire pars tensa is intact, but there is an adhesion of the tympanic membrane to the incus incus /in·cus/ (ing´kus) [L.] the middle of the three ossicles of the ear, which, with the stapes and malleus, serves to conduct vibrations from the tympanic membrane to the inner ear. Called also mal·le·us n. pl. appears to be slightly anterior to its normal position. The chorda tympani is seen horizontally, extending from near the short process of the malleus to the bone inferior to the posterior fracture. Fracture of the temporal bone can be seen immediately superior to the stapes stapes /sta·pes/ (sta´pez) [L.] the innermost of the auditory ossicles; it articulates by its head with the incus and its base is inserted into the oval window sta·pes n. pl. and chorda tympani. A second fracture is seen anterior to the short process of the malleus. Despite the obvious fractures and myringostapedopexy, hearing was near-normal, and no treatment was required. From Gap, France (Dr. Deguine), and the Pulec Ear Clinic, Los Angeles (Dr. Pulec). |
|
||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion