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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8111396 | PMC |
| http://dx.doi.org/10.21053/ceo.2020.00850 | DOI Listing |
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Complication of Ear Impression: Foreign Body in the Eustachian Tube Eroding the Carotid Canal.
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Department of Otolaryngology Head and Neck Surgery, Hôpital Fondation A. de Rothschild, Paris, France.
The realization of customized earing plugs and earmolds for hearing aids requires an impression of the external auditory canal to obtain a siliconized mold. Silicone used for ear impressions is known to be safe and inert but deposition of silicone in the middle ear can middle and inner ear damages. We present a case of accidental injection of silicone in the middle ear and the Eustachian tube resulting in an erosion of the carotid canal.
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Ear Nose Throat J
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Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.
When fitting hearing aids, patients are required to make an earmold impression material for device fixation. It usually causes no problems, although in rare cases, the earmold passes through the middle ear through tympanic membrane perforations.- Foreign bodies may cause a delayed inflammatory reaction and deterioration of aeration, especially in the Eustachian tube.
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Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
An 86-year-old man presented ambulatory with acute dysphagia. Radiologic examination and endoscopy revealed a swallowed postauricular hearing aid. The earmold of the hearing aid became visible in the hypopharynx after mucus and saliva were removed.
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