| 单词 | Ruptures,Tympanic Membrane |
| 释义 | Ruptures,Tympanic Membrane《英文msh词典》Ruptures,Tympanic Membrane [入口词] Ruptures,Tympanic Membrane [主题词] Tympanic Membrane Perforation [英文释义] An opening in the tympanic membrane usually caused by trauma. There are four general categories: compression injuries (the most common and usually the result of a blow to the ear); instrumentation injuries (the second most common,usually inadvertent,caused often by cotton swabs or bobby-pins); burn-slag injuries (frequently seen in industry,from hot metal from machines or welding); and blast injuries (usually seen during war or as a result of terrorist bombing). In the absence of infection,most traumatic tympanic membrane perforations heal spontaneously. Persistent perforation is usually a manifestation of tubotympanitis,an inflammation of the eustachian tube and tympanic cavity (middle ear). (From Paparella,Shumrick,Gluckman,and Meyerhoff: Otolaryngology,vol. II,3d ed,pp1363-65) |
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