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KMID : 0191120090240061227
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Journal of Korean Medical Science
2009 Volume.24 No. 6 p.1227 ~ p.1229
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Solitary Metastasis of Bronchogenic Adenocarcinoma to the Internal Auditory Canal: A Case Report
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Chang Ki-Hong
Song Chang-Eun
Seo Jae-Hyun
Yeo Sang-Won
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Abstract
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We report a patient with an isolated metastasis to the internal auditory canal (IAC) of bronchogenic adenocarcinoma. A 58-yr-old man who had received 6-cycle of chemotherapy under diagnosis of non-small cell lung carcinoma (T4N2M0) two years ago was referred to our department with vertigo, right-sided facial paralysis and right-sided hearing loss. A provisional diagnosis of vestibular schwannoma or meningioma involving right IAC was made from magnetic resonance imaging. The patient underwent a translabyrinthine removal of the tumor. Histopathological study of the resected lesion showed a poorly differentiated adenocarcinoma compatible with bronchogenic origin. The patient died 9 months after surgery from extensive brain metastasis despite postoperative radiation therapy. In patients with a previous history of treatment of malignancy elsewhere in the body, the possibility of IAC metastasis must be considered when an IAC lesion is detected.
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KEYWORD
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Neoplasm Metastasis, Internal Auditory Canal, Adenocarcinoma, Lung Neoplasms
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