Zan E, Limb C J, Koehler J F, Yousem D M
Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins Hospital, 600 N. Wolfe Street, Baltimore, MD 21287, USA.
AJNR Am J Neuroradiol. 2009 Sep;30(8):1602-3. doi: 10.3174/ajnr.A1534. Epub 2009 Apr 15.
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.
中耳腺瘤是罕见的良性肿瘤,在放射学上很容易与其他病症混淆。它们起源于中耳黏膜。我们报告一例48岁男性病例,该患者有左侧听力下降和间歇性搏动性耳鸣病史。颞骨高分辨率CT显示左侧中耳有一界限清楚的软组织密度影,紧邻锤骨头。手术切除显示为中耳腺瘤。