副咽頭間隙血管周皮細胞腫例　　度重なる再発と多様性を示した転移像

DOI 被引用文献2件 参考文献24件

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タイトル別名
  • Hemangiopericytoma of the Parapharyngeal Space.
  • ―度重なる再発と多様性を示した転移像―

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A 47-year-old woman complaining of a sore throat was referred to our hospital. Previously, the patient had been operated on twice for parapharyngeal tumors in other locations. Magnetic resonance imaging of the area revealed a well-defined round mass in the parapharyngeal lesion that was surgically removed. Histopathological analysis of the surgical specimen revealed a hemangiopericytoma. Subsequently, the tumor recurred twice over the next six years, and multiple distant metastasis, including lung, liver and bone, proved to be fatal. Autopsy specimens from each metastasis lesion showed homogeneous cells of markedly different grades, suggesting that the process of tumor evolution and progression can generate biological diversity, and that the parent tumor is heterogeneous.<br>In conclusion, this clinical course is useful for suggesting biological diversity in the primary tumor.

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