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.
A: While patients seem to know that melanomas are dangerous skin cancers, the same often isn't true with respect to the nonmelanoma skin cancers basal and squamous cell carcinoma (BCC and SCC).All dermatologists sooner or later are asked by patients whether they can forgo surgery for these cancers.: While patients seem to know that melanomas are dangerous skin cancers, the same often isn't true with respect to the nonmelanoma skin cancers basal and squamous cell carcinoma (BCC and SCC).