The student has knowledge relating to the anatomy, physiology and functions of the skin and mucous membranes. Notions related to the clinic and diagnosis of frequently encountered pathologies are provided: Allergic and irritative contact dermatitis of skin and mucous membranes, Lichen ruber planus, viral and bacterial diseases, candidiasis, autoimmune bullous diseases. He will acquire knowledge on the diagnostic and clinical aspects of melanocytic lesions and tumors of epithelial origin.