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.
The most common primary tumors are paragangliomas (glomus tumors), followed by middle ear adenomas in adults and by hemangiomas in children.
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.