Malignant melanoma of the sinonasal mucosa: Two case reports and a review

Abstract. Malignant melanoma of the sinonasal cavity is an uncommon disease, and therefore a limited amount of data exists regarding its optimal treatment. The course of the disease is highly variable. Individual survival is also highly variable, but the overall prognosis is poor, probably because patients generally present at a late stage and because the disease has a proclivity for distant dissemination. We describe 2 recent cases of primary malignant melanoma of the sinonasal mucosa, and we review the literature.