FULL ANSWER. Ford granted the blanket pardon to former president Nixon on Sept. 8, 1974, a month after Nixon had resigned from office in the wake of the Watergate scandal.
Hemosiderin staining is dark purple or rusty discoloration of the lower legs caused by chronic venous disease. A 2010 study found hemosiderin staining in all subjects with lipodermatosclerosis and venous ulcers. When vein valves fail, regurgitated blood forces red blood cells (RBCs) out of capillaries.
Cause #4: A medical condition called acanthosis nigricans. This condition causes light-brown-to-black markings on the neck, under the arms, or in the groin. It can be related to insulin production or to a glandular disorder and it typically occurs in people who are overweight.