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Arch Otolaryngol Head Neck Surg. 2004;130:894.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Diagnosis: Metastatic renal cell carcinoma, clear cell type

Renal cell carcinoma (also known as hypernephroma, adenocarcinoma of renal parenchyma, and Grawitz tumor) represents 3% of all adult malignant tumors and occurs in a male-female ratio of 1.5:1.0. Between 6% and 16% of the metastases occur in the head and neck region. Approximately 8% of patients have head and neck metastases as the initial presentation^1-2; furthermore, renal cell carcinoma may metastasize many years after a successful nephrectomy.

The incidence of renal cell carcinoma occurs more frequently in the fifth and sixth decades of life. Distant metastases usually extend to the lungs (76%), the bones (42%), and the liver (41%).¹ However, hypernephroma is the most common infraclavicular primary tumor to metastasize to the nasal cavity and paranasal sinuses,¹ accounting for 40% to 50% of metastases in these regions.³

The sinonasal tract and, more specifically, the ethmoid sinus are rare sites for metastatic tumors. The maxillary sinus is the most . . . [Full Text of this Article]

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Arch Otolaryngol Head Neck Surg. 2004;130(7):892-893.
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