Application of Machine Learning in Melanoma Detection and the Identification of 'Ugly Duckling' and Suspicious Naevi: A Review Non melanoma skin cancer 'raises malignancy risk' GPonline Types of Melanoma with Pictures Non melanoma skin cancer refers to a group of skin cancers that include basal cell and squamous cell carcinoma. They are less worrisome than melanoma, but still require treatment, left untreated, they Melanoma Skin Cancer: Appearance, Signs, and Types Melanoma: Diagnosis and Treatment AAFP