Amelanotic melanoma on the sole of the foot Whilst amelanotic melanoma is relatively uncommon fatality rates tend to be higher because they often go undetected for longer, are often misdiagnosed because they mimic other skin lesions and are therefore Melanocytic Nevus: What Is It, Causes, Signs and Symptoms, and More Osmosis Melanoma Signs, Risk Factors, Diagnosis & Treatment Bayside Skin Cancer Clinic