Normal salivary gland tissue occurring as a tumor in the middle ear is a rare entity. It is associated with developmental anomalies of the facial nerve and ossicular chain. Surgical correction of the accompanying conductive hearing loss required removing the tumor from an aberrant facial nerve.
Bruner RC. Salivary Gland Choristoma of the Middle Ear: A Case Report. Arch Otolaryngol. 1970;91(3):303. doi:10.1001/archotol.1970.00770040409019
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