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.
Basal cell carcinoma can look different. You may notice a skin growth in a dome shape that has blood vessels in it. It can be pink, brown, or black. At first, a basal cell carcinoma comes up like a small pearly bump that looks like a flesh-colored mole or a pimple that doesnât go away. Sometimes these growths can look dark.