頭頚部に転移をきたした腎細胞癌例

DOI 被引用文献13件 参考文献12件

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  • Renal Cell Carcinoma, Presenting as Metastasis to the Head and Neck Region.

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Renal clear cell carcinoma rarely metastasizes to the head and neck region without metastases to another organ. We encountered a case of renal clear cell carcinoma that metastasized to the thyroid gland and the sphenoid sinus.<br>The patient was a 46-year-old man. In June, 1995, he was diagnosed as having renal cell carcinoma and underwent left nephrectomy. This was followed up with an injection of INF, 2 times/week. In December, 1997, he noticed swelling in his throat. The mass was 40×45mm, elastic, hard, and moved with swallowing. It was diagnosed as clear cell carcinoma by fine needle biopsy. Thyroidectomy was performed on 11, May, 1998. In August, 1998, visual loss occurred. A tumor involving the sphenoid sinus was detected on CT. Endoscopic sinus surgery was performed on 30, August, 1998. It was diagnosed cytologically as clear cell carcinoma. He died on 16 November due to bleeding from the recurred tumor.<br>Renal cell carcinoma mainly metastasizes through the blood system. The metastases to multiple organs usually depend on the caval system. In this case, no metastasis was found other than in the head and neck region. It is possible that metastasis through Batson's plexus was responsible for the metastasis being limited to the head and neck region.

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