Renal Cell Carcinoma Presenting with Skull Metastasis: A Case Report and Literature Review

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Abstract
The occurrence of metastasis to the head and neck region in renal cell carcinoma is extremely rare. An 80-year-old man presented with a soft nodule in the left parietal calvarium and was admitted to our hospital. Biopsy of the nodule showed nests of clear tumor cells, suggesting metastatic renal cell carcinoma. Computed tomography of the abdomen revealed a well-defined hypervas-cular tumor, measuring around 7×7×8 cm, exophytic from the lower pole of the right kidney. Since there were no other systemic metastases, right nephrectomy and complete resection of the skull lesion were performed. No adjunctive therapy was given postoperatively After 22 months of follow-up, the patient was well and without evidence of disease.

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