Now in its Second Edition with an updated design, this chart shows cross section of the skin, nail, and hair anatomy. It illustrates types of skin lesions: macule, papule, nodule, wheal, vesicle, intra-epidermal or sub-epidermal blister, pustule, cyst, fissure, and ulcer. It also shows common skin ailments: acne of various kinds, basal cell carcinoma, malignant melanoma, three kinds of melanocytic nevus (mole), papilloma virus infection (wart), dermatofibroma, seborrhoeic keratosis, and solar keratosis.