That does not mean, however, that sunbathing poses a minimal risk of developing melanoma. Researchers say that ultraviolet A (UVA) radiation, the rays in sunlight that reach the deeper layers of skin and are associated with signs of aging, can damage the DNA in melanocytes, the pigment-producing cells... 

Malignant melanoma is the most serious type of cancer of the skin. Each year in the United States, more than 53,600 people learn that they have malignant melanoma. In some parts of the world, especially among Western countries, malignant melanoma is becoming more common every year. In the United ... 

Helen M. Shaw, Michael J. Quinn, Richard A. Scolyer, John F. Thompson The Sydney Melanoma Unit, Camperdown, Australia To the Editor: The clinical and biologic behavior of desmoplastic melanoma (DM) is a subject of great relevance to those involved in the management of melanoma patients. We therefore... 

Lymph node status is the most reliable prognostic indicator for patients with melanoma and breast cancer. Because it is the first node draining the primary cancer, the sentinel lymph node (SLN) is most likely to harbor metastatic cancer cells. The Breslow thickness of the primary melanoma and the size... 

The outer layer of skin, the epidermis, is made up of different types of cells. Skin cancers are classified by the types of epidermal cells involved: —      Basal cell carcinoma develops from abnormal growth of the cells in the lowest layer of the epidermis and is the most common type of skin...