middle ear adenoma

middle ear adenoma

A rare, benign tumour of the middle ear with exocrine (mucinous) and/or neuroendocrine differentiation, which affects patients > age 40.
 
DiffDx
Metastatic carcinoid, otitis media, paraganglioma.

Imaging
High-resolution CT of temporal bone reveals well-defined soft-tissue attenuation.
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References in periodicals archive ?
Middle ear adenoma with neuroendocrine differentiation.
Uncommon benign tumors include hemangiomas and middle ear adenomas.
Neuroendocrine adenomas of the middle ear, also known as middle ear adenomas and carcinoids, are rare neoplasms.