Metastasis to the sinonasal region do appear, but are rare. Depending on the affected anatomical area, patients might have symptoms similar to the ones presented with a primary tumour of the area. In many occasions, only a biopsy will give a final diagnosis and provide the treating physician with a pathway to follow. We present two patients with metastatic carcinoma to the sphenoid from the thyroid and pancreas and two patients with metastatic renal cell carcinoma to the left nasal vestibule.
- Paranasal sinuses biopsy
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