Thrombotic microangiopathies (TMAs) are a group of disorders characterized by occurrence of thrombi of fibrin and/or platelets with microvascular occlusion and organ ischemia especially the kidney and brain. Hemolysis with a microangiopathic blood smear, elevated liver enzymes, and low platelet count (HELLP syndrome) is a type of TMA peculiar to pregnancy and may be associated with neurological...