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  • Title: Primary melanoma of the petrous temporal bone.
    Author: McJunkin JL, Wiet RJ.
    Journal: Ear Nose Throat J; 2015 Jul; 94(7):E19-20. PubMed ID: 26214673.
    Abstract:
    Melanoma is a malignant tumor of melanocytes that is predominantly found in the skin. In rare cases, it arises from mucosal melanocytes. We describe a case of a solitary melanoma of the petrous apex of the temporal bone in a 67-year-old woman who presented with sudden hearing loss, aural fullness, and headaches, all on the right side. Magnetic resonance imaging identified a mass located at the right petrous apex; the lesion was hyperintense on T1-weighted imaging and isointense on T2 weighting, and it enhanced brightly with gadolinium contrast. The patient underwent removal of the lesion via a transcochlear approach with facial nerve translocation. Intra- and postoperative pathology identified a poorly differentiated malignancy consistent with a melanoma. Further investigations found no evidence of metastasis. Given a concern for residual disease, the patient was treated with radiation to the primary site. To the best of our knowledge, only 1 other case of primary melanoma of the petrous apex has been described in the literature.
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