Iris melanocytic tumors are a group of pigmented or non pigmented lesions arising from melanocytes in the iris. These can range from benign to malignant. Suspicious features for melanoma (ABCDE of Amelanotic melanoma: Appearances, Symptoms and Treatment DermNet A nevus is a benign (non cancerous) melanocytic tumor, more commonly called a mole. Will it develop into an issue? Find out. How Can You Tell if It's Melanoma or Just a Mole? A Better Way to Distinguish Among Melanomas? Contemporary Approaches to Malignant Melanoma Staging Melanocytic Skin Neoplasms Using High Level Pixel Based Features