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OtherHead and Neck Imaging

Solitary Fibrous Tumor of the Parapharyngeal Space: MR Imaging Findings

Ae Kyung Jeong, Ho Kyu Lee, Sang Yoon Kim and Kyung-Ja Cho
American Journal of Neuroradiology March 2002, 23 (3) 473-475;
Ae Kyung Jeong
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Ho Kyu Lee
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Sang Yoon Kim
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Kyung-Ja Cho
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    Fig 1.

    MR images in a 49-year-old woman with a bulging mass in the left oral cavity.

    A, Axial T1-weighted (450/12) image shows a well-defined, lobulated, contoured mass in the left parapharyngeal space that has the same signal intensity as that of the adjacent muscle (solid arrows). The mass displaces the parapharyngeal fat medially (arrowheads) and the carotid sheath posterolaterally (open arrow). The mass has a clear margin against the deep lobe of the parotid gland with the widening of the stylomandibular tunnel (*).

    B, Axial T2-weighted (3700/99) image obtained at the same level as in A shows the heterogeneous high signal intensity of the mass (arrows). Note the linear area of hypointense signal in an arborizing pattern within the mass (arrowhead).

    C, Contrast-enhanced axial T1-weighted (450/12) image obtained at the same level as in B reveals homogeneously strong enhancement in the mass (arrows).

    D, On this contrast-enhanced coronal T1-weighted (450/12) image, the mass (arrows) occupies the left parapharyngeal space at the oropharyngeal level.

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    Fig 2.

    Photomicrographs in a 49-year-old woman with a bulging mass in the left oral cavity.

    A, Image of the parapharyngeal mass shows that the tumor has the alternating pattern of hemangiopericytomatous area (arrow) with a hypocellular fibrous region (ie, patternless pattern); these features suggest an SFT (hematoxylin-eosin stain, original magnification ×40).

    B, Image shows that the neoplastic cells have a positive reaction with CD34 immunohistochemical staining; this finding clarifies the diagnosis of SFT (original magnification ×200).

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American Journal of Neuroradiology: 23 (3)
American Journal of Neuroradiology
Vol. 23, Issue 3
1 Mar 2002
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Cite this article
Ae Kyung Jeong, Ho Kyu Lee, Sang Yoon Kim, Kyung-Ja Cho
Solitary Fibrous Tumor of the Parapharyngeal Space: MR Imaging Findings
American Journal of Neuroradiology Mar 2002, 23 (3) 473-475;

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Solitary Fibrous Tumor of the Parapharyngeal Space: MR Imaging Findings
Ae Kyung Jeong, Ho Kyu Lee, Sang Yoon Kim, Kyung-Ja Cho
American Journal of Neuroradiology Mar 2002, 23 (3) 473-475;
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