Malignant sinonasal papilloma with neck metastasis: a rare report and literature review.

Sinonasal papillomas are relatively rare, benign epithelial tumours of the nasal cavity. These lesions generate considerable interest because they are locally aggressive, have a tendency to recur and are associated with malignancy. The authors present a unique case of malignant sinonasal papilloma with neck metastasis. In the English literature only one case of such a presentation has been reported.