1. Skin Disorders  Cancer: rapid mitotic division of cells caused by a trigger environmental, genetic  Skin cancer: is caused by exposure to UV rays. There are three types named for tissue affected  Basal carcinoma: most common, and easiest to remove. Appears as a red shiny bump that enlarges with depressed center

2. Skin Disorders  Squamous carcinoma: found usually on scalp, ears, lip, back of hands. Has red scaly appearance with concave center. High survival rate with early detection, will metastasize to lymph nodes highly lethal  Malignant melanoma: most deadly arises in melanocytes in moles. Fast to metastasize lethal without immediate treatment

3. Skin Disorders  Burns: Leading cause in accidental death, death results from fluid loss and the toxic effect of eschar  First degree: found in only epidermis, epidermis turns red, edema and pain, heals in a few days

4. Skin Disorders  Second degree: or partial-thickness burns due to damage only in top of dermis layers, has blisters can scar and takes about 2 weeks to heal  Third degree: or total thickness burns, turns black, skin can only grow from sides of damaged area so grafts are needed, debridement must occur in 24 hours, then toxic