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.
Rarer types of non melanoma skin cancer. There are other less common types of skin cancer. These make up only about 1 out of every 100 (1%) skin cancers diagnosed in the UK. They are: Merkel cell carcinoma; Kaposiâs sarcoma; T cell lymphoma of the skin; These are all treated differently from basal cell and squamous cell skin cancers.