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OtherHEAD & NECK

Fluid-Fluid Level Formation: A Rare Finding of Extracranial Head and Neck Schwannomas

H. Kato, M. Kanematsu, K. Mizuta, M. Aoki, K. Yamada, H. Yamakawa, T. Iwama and Y. Hirose
American Journal of Neuroradiology August 2009, 30 (7) 1451-1453; DOI: https://doi.org/10.3174/ajnr.A1511
H. Kato
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M. Kanematsu
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K. Mizuta
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M. Aoki
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K. Yamada
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H. Yamakawa
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T. Iwama
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Y. Hirose
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    Fig 1.

    Case 1. An 85-year-old woman with a vagus nerve schwannoma in the right neck. A, Unenhanced CT scan shows a well-demarcated, hypoattenuated lesion, with a fluid-fluid level (arrow). B, Axial T2-weighted fast spin-echo MR image (TR, 4102 ms; TE, 90 ms) shows a cystic tumor with a fluid-fluid level (arrow) and a deviation of the right common carotid artery (arrowhead).

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    Fig 2.

    Case 2. A 44-year-old man with a vagus nerve schwannoma in the left parapharyngeal space. A, Unenhanced CT scan shows a well-demarcated, hypoattenuated lesion, with a fluid-fluid level (arrow). B, Axial T2-weighted fast spin-echo MR image (TR, 5710 ms; TE, 90 ms) shows a unilocular cystic tumor with a fluid-fluid level (arrow) and a deviation of the left internal carotid artery (arrowhead).

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    Fig 3.

    Case 3. A 59-year-old man with a large schwannoma in the right neck, extending to the posterior cranial fossa. A, Unenhanced CT scan shows a well-demarcated, hypoattenuated lesion, with a fluid-fluid level (arrow). B, Axial T2-weighted fast spin-echo MR image (TR, 4102 ms; TE, 90 ms) shows a multicystic tumor with a fluid-fluid level (arrow) and a deviation of the right internal and external carotid arteries (arrowhead).

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American Journal of Neuroradiology: 30 (7)
American Journal of Neuroradiology
Vol. 30, Issue 7
August 2009
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Fluid-Fluid Level Formation: A Rare Finding of Extracranial Head and Neck Schwannomas
H. Kato, M. Kanematsu, K. Mizuta, M. Aoki, K. Yamada, H. Yamakawa, T. Iwama, Y. Hirose
American Journal of Neuroradiology Aug 2009, 30 (7) 1451-1453; DOI: 10.3174/ajnr.A1511

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Fluid-Fluid Level Formation: A Rare Finding of Extracranial Head and Neck Schwannomas
H. Kato, M. Kanematsu, K. Mizuta, M. Aoki, K. Yamada, H. Yamakawa, T. Iwama, Y. Hirose
American Journal of Neuroradiology Aug 2009, 30 (7) 1451-1453; DOI: 10.3174/ajnr.A1511
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