The Department of Defense is headed by a civilian; the Secretary of Defense, who is appointed by the President of the United States. Under the Secretary of Defense, there are three military departments: The Department of the Army, the Department of the Air Force, and the Department of the Navy. 1  Each of these military departments are also headed up by civilians; the Secretary of the Army, the Secretary of the Air Force, and the Secretary of the Navy.
Melanoma is not as common as other types of skin cancer, but it's the most serious and potentially deadly. Possible signs of melanoma include a change in the appearance of a mole or pigmented area.
Skin lesions are causing symptoms (e.g., bleeding, burning, itching, or irritation); or. The lesion has evidence of inflammation (e.g., edema, erythema, or purulence); or. The lesion is infectious (e.g., warts [verruca vulgaris]); or. The lesion restricts vision or obstructs a body orifice. In the absence of any of the above indications, removal of seborrheic keratoses, sebaceous cysts, small nevi (moles), dermatofibromas, pilomatrixoma, or other benign skin lesions is considered cosmetic. Seborrheic keratoses are non-cancerous growths of the outer layer of skin.