Melanoma Basal Cell Carcinoma Treatment Diagnosis Malignant Melanoma Breast Cancer Prevention Symptoms Dermatology Sun Exposure Personal Health Personal Experience Death David Loughery Petticoat Cancer Merkel Cell Carcinoma Melanoma Treatment Melanoma Awareness Moles Non-melanoma Causes Sarah Ferguson's Cancer Diagnosis Early Detection Procedure Treatment Process Personal Health Stories Basel Cell Carcinoma Skin Cancer Surgeon Skin Checkups Types of Skin Cancer Signs of Skin Cancer UV Radiation Dermatologist Skin Cancer Prevention Eye Damage Prevention Measures UV Exposure Sun Protection Acral Melanoma Non-Melanoma Skin Cancer Dave Portnoy's Diagnosis