Melanoma; Pressure Ulcers; Wound Healing and Biology of the Skin; Local anesthetics-uses and toxicities; Approach to excision and closure of the skin; Unusual Skin Tumors; Dermatologic considerations for the General Surgeon; Suture choice and other skin closure methods; Benign and subcutaneous lesions; Common skin cancers and their precursors; Pilonidal cyst and benign perianal skin conditions