Middle ear metastasis from dormant breast cancer as the initial sign of disseminated disease 20 years after quadrantectomy

March 24, 2013
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Abstract

We describe an unusual case of breast cancer metastatic to the middle ear in a 71-year-old woman. The metastasis was the initial sign of disseminated disease 20 years after the patient had undergone a quadrantectomy for her primary disease. Computed tomography (CT) demonstrated the presence of an intratympanic mass with a soft-tissue density that was suggestive of chronic inflammation. The patient underwent a canal-wall-down tympanoplasty. When a brownish mass was found around the ossicles, a mastoidectomy with posterior tympanotomy was carried out. However, exposure of the tumor was insufficient, and therefore the posterior wall of the ear canal had to be removed en bloc. Some tumor was left on the round window membrane so that we would not leave the patient with a total hearing loss. Our case highlights the limitations of CT and magnetic resonance imaging in differentiating inflammatory and neoplastic lesions.

Introduction

Cancer metastases to the temporal bone, including the middle ear, are relatively uncommon. Affected patients are often asymptomatic for a long time. When signs and symptoms of middle ear metastasis do manifest, they may be misinterpreted as otitis media or mastoiditis. We describe a new case.

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