Rats are potentially very useful for auditory research because the middle ear structures are easily approachable and because rats are relatively inexpensive. The goal of the present study was to better characterize the mechanics of the rat middle ear by measuring frequency responses at multiple points on the tympanic membrane and manubrium. A laser Doppler vibrometer was used to measure the vib...

Hemangiomas of the external auditory canal, involving the posterior bony canal and the adjacent tympanic membrane, although rare, are considered a specific disease entity of the human external auditory canal. Hemangiomas of the tympanic membrane and/or external auditory canal are rare entities; there are 16 previous case reports in the literature. It is a benign vascular tumor. It generally occ...

Hearing impairment is one of the most common disabilities. Animal models have been shown to be valuable tools in auditory research, including studies of middle-ear mechanics. Rats are potentially very useful for this purpose. They are low in cost, they are genetically similar to humans, and the middle-ear structures are easily approachable. The goal of the present study is to characterize the f...

Introduction and objective: Tympanic Membrane Cholesteatoma (TMC) is a rare pathology of unknown etiology which occurs more frequently in pediatric population, being the presentation adults exceptional. Resection lesion usually surgical treatment through transcanal approach.

It is estimated that by 2050 one in every ten people will be suffering from disabling hearing loss. Perforated tympanic membranes (TMs) are the most common injury to human ear, resulting a partial or complete loss due inept sound conduction. Commonly known as eardrum, TM thin, concave tissue of middle ear captures pressure waves environment and transmits them mechanical vibrations inner ear. Mi...

Although gradual changes in air pressure may result in rupture of the tympanic membrane, this most often occurs from a rapid change. Sudden forceful blows on the ear, which seal the external auditory meatus, can result in sufficient increase in the air pressure in the ear canal to rupture the tympanic membrane. The most frequent single cause is a blow on the ear, usually with the open hand. Thi...