Microscopy of a thrombus (blood clot) in a small artery of a the pancreas of a patient with Moschcowitz disease. Moschcowitz disease, also known as thrombotic thrombocytopenic purpura (TTP), is a rare blood disorder that causes small blood clots to form in small blood vessels throughout the body leading to a low platelet count and purpura (purplish skin spots caused by bleeding near the skin's surface). Magnification: 140x