The malignant growths which commonly arise in the skin are squamous cell carcinoma and basal cell carcinoma. Squamous carcinomata seldom appear before the age of 40 years arise from pre-existing keratosis which in their turn may have been produced by chronic solar dermatitis or prolonged exposure to tar, arsenic or mineral oils. They are usually found on the lower lip, cheeks or scalp, less commonly on the hands, forearms or scrotum. 1. Superficial type—is commonly present on the trunk and looks like eczematous patch. 2. Pigmented type—resembles a melanoma. 3. Moh’s chemosurgery—very useful where available. 4. Cryosurgery. 5. FFU cream. Malignant melanoma: Incidence: One to three percent of all cancers, fair skin and blue-eyed people suffer more. Malignant melanoma may arise do novo, from a nevus from lentigo maligna. Diagnosis is made clinically as well as histopathologically: 1. Lentigo malignant melanoma. 2. Superficial spreading (most common form). 3. Nodular. 4. Acral—on palms, soles, fingers and toes as spreading pigmental patch. Surgical excision. Clinically four common presentations are seen: 1. Nodular ulcerative type. 2. Superficial type. 3. Pigmented type. 4. Sclerosing type. Rare type—premalignant fibroepithelial tumors of pinkus.