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KMID : 1001920110490060359
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Journal of Korean Neurosurgical Society
2011 Volume.49 No. 6 p.359 ~ p.362
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Ewing’s Sarcoma/Peripheral Primitive Neuroectodermal Tumor in the Cerebellopontine Angle : Diagnosis and Treatment
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Choi Ho-Yong
Kim Yong-Hwy
Kim Jee-Hyun
Kim In-Ah
Choe Ghee-Young
Kim Chae-Yong
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Abstract
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Ewing’s sarcoma/primitive neuroectodermal tumor (ES/PNET) is an unusual malignancy with aggressive behavior. ES/PNET in the cerebellopontine angle (CPA) is extremely uncommon, and we report on a rare case here. A 31-year-old man presented with one month history of left facial palsy, hearing loss, swallowing difficulty, and hoarseness. Magnetic resonance images showed a large mass in the left CPA and a small one in the right cerebellar hemisphere. The patient underwent a surgery for the CPA mass lesion, and the pathology was compatible with ES/PNET. Radiation therapy and chemotherapy were administered. In contrast to the initial radiologic findings resembling vestibular schwannoma or meningioma, ES/PNET had several distinct clinical features. A patient with a CPA mass and presenting unusual clinical features should be suspected of having a rare malignancy.
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KEYWORD
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Ewing’s sarcoma, Primitive neuroectodermal tumor, Cerebellopontine angle
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