RT Journal Article SR Electronic T1 Middle Ear Adenoma: A Challenging Diagnosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1602 OP 1603 DO 10.3174/ajnr.A1534 VO 30 IS 8 A1 E. Zan A1 C.J. Limb A1 J.F. Koehler A1 D.M. Yousem YR 2009 UL http://www.ajnr.org/content/30/8/1602.abstract AB SUMMARY: Middle ear adenomas are rare benign tumors, which can easily be mistaken for other conditions radiologically. They derive from the middle ear mucosa. We report the case of a 48-year-old man with a history of decreased left-sided hearing and intermittent pulsatile tinnitus. High-resolution CT of the temporal bones revealed a well-defined left middle ear soft-tissue attenuation abutting the head of the malleus. Surgical excision revealed a middle ear adenoma.