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.
Nodular basal cell carcinoma: On this manâs nose, the basal cell cancer looks like a sore that will not heal. Pigmented basal cell carcinoma: Basal cell cancer can cause a brown or black growth. Superficial basal cell carcinoma: On the trunk, basal cell cancer often looks like a reddish, scaly patch. Sclerosing basal cell carcinoma: The pinkish skin on this manâs nose looks like a scar, but it is basal cell cancer. Basal cell carcinoma can return: Even with proper treatment, this skin cancer can return as shown here on this womanâs nose.