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Hypoglossal nerve schwannoma with intratumoral hemorrhage

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Abstract

Intratumoral hemorrhage of hypoglossal schwannoma is very rare. A 37-year-old man was admitted to our hospital with severe headache and gait disturbance. Radiologic examination revealed subarachnoid hemorrhage and a well-circumscribed enhanced lesion compressing the medulla oblongata. Gross total removal of the intracranial tumor was performed. Histopathological examination revealed the characteristic features of a schwannoma. The tumor had several hemorrhagic areas and numerous hyalinized blood vessels. Although the mechanism of hemorrhage from schwannomas is unclear, it is hypothesized that tumor vessels showing focal sinusoidal dilatation and hyaline thickening of the walls lead to spontaneous thrombosis with consequent necrosis, and often hemorrhage.

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Authors and Affiliations

  1. Department of Neurosurgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan

    Shigeo Ohba

  2. Department of Neurosurgery, Ashikaga Red Cross Hospital, Ashikaga, Tochigi, Japan

    Shigeo Ohba, Yu Kinoshita, Toru Nakagawa & Hideki Murakami

  3. Department of Neurosurgery, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Kanagawa, Japan

    Makoto Inaba

  4. Department of Pathology, Ashikaga Red Cross Hospital, Ashikaga, Tochigi, Japan

    Kazuhiko Shimizu

Authors
  1. Shigeo Ohba
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  2. Makoto Inaba
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  3. Yu Kinoshita
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  4. Toru Nakagawa
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  5. Kazuhiko Shimizu
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  6. Hideki Murakami
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Correspondence to Shigeo Ohba.

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Ohba, S., Inaba, M., Kinoshita, Y. et al. Hypoglossal nerve schwannoma with intratumoral hemorrhage. Brain Tumor Pathol 29, 43–46 (2012). https://doi.org/10.1007/s10014-011-0060-2

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  • DOI: https://doi.org/10.1007/s10014-011-0060-2

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