Melanoma vs Benign Melanocytic Nevus Lecturio Dermatology Amelanotic Melanomas: Symptoms, Stages and Treatment When to suspect a non melanoma skin cancer The BMJ Melanoma can sometimes present as red spots on the skin, particularly in cases of amelanotic melanoma, a subtype that lacks the typical dark pigmentation. These lesions may appear pink, red, or Non melanoma skin cancer 'raises malignancy risk' GPonline