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  • Title: [Papillary tumor of the inner ear: adenoma or carcinoma?].
    Author: Hattenberger S, Schroeder HG, Sollmann WP, Donhuijsen K.
    Journal: HNO; 2002 Feb; 50(2):161-4. PubMed ID: 12080627.
    Abstract:
    A 46-year-old female patient presented relapsed left-sided hearing loss and progressive left facial nerve palsy. At first, the computed tomography (CT) scan and magnetic resonance (MR) imaging did not indicate a diagnosis of a tumorous lesion. Nine years after the first symptoms, a destructive cystic neoplasm of the pars petrosa of the temporal bone was then evident. The lesion was surgically removed by radical resection. Histologically, a papillary tumor of the endolymphatic sac was diagnosed. These tumors tend to become destructive and more or less aggressive, but they do not metastasize. Therefore, the best term for them should be "aggressive papillary tumors of the endolymphatic sac" to avoid classification as an adenoma or adenocarcinoma.
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