A Case of Metastasis of Renal Cancer to the Nasal Cavity and Paranasal Sinuses.

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A case of metastasis of renal cancer to the nasal cavity and paranasal sinuses 2 years after a right nephrectomy in a 61-year-old male is reported. This patient visited our hospital suffering from massive nasal hemorrhage. There was a tumor in the right nasal cavity. We suspected metastasis of renal cancer to the nasal cavity from anamnesis, symptom and CT (computed tomography). The tumor was removed by lateral rhinotomy. Histopathologic examination revealed a clear cell carcinoma due to metastasis from a renal cancer.<BR>There was no sign of recurrence during the past 8 months after operation.<BR>It is believed that metastasis of renal cancer occurs by circuration, and mainly in the lung, liver and bone. It is reported that metastasis to otolaryngology area is rare. Otherwise tumors metastatic to the nasal cavity and paranasal sinuses are most commonly from the renal cancer.<BR>Latent metastasis from renal cancer may arise many years after primary tumor has been removed.<BR>In renal cancer surgical treatment is effective in primary tumor and if metastasis can be removed totally, patients are recovering well.
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