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Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Elective lymph node dissection (ELND): Major surgical procedure in which all lymph nodes are removed from the area surrounding a primary melanoma. Endostatin: An angiogenesis inhibitor currently being investigated for the treatment of Stage IV melanoma. Ephelides: Freckles. Epidermis: The thin upper or outer layer of skin. Epiluminescence microscopy: See Dermoscopy. Epitopes: Distinctive markers that protrude from the surface of an antigen, and that alert the immune system to the antigen's presence. Eumelanin: The most abundant type of human melanin, found in brown and black skin and hair. Excision: The act of surgically removing or cutting out. Excisional biopsy: A biopsy in which the goal is complete removal of a suspicious skin. External beam radiation therapy: Radiation therapy administered from an energy source outside the body and directed to a target inside the body Extracapsular: Located or occurring outside the lymph node capsule. |