Numerous schistocytes in thrombotic thrombocytopenic purpura

An 83-year-old man was transported by ambulance to the emergency room because he had a clouding of consciousness. On arrival, his Glasgow Coma Scale score was 13 (E4V4M5). His temperature was 37.3°C, blood pressure 139/77 mm Hg and pulse 101 beats per minute. Physical examination revealed jaundice and purpura throughout the body. Laboratory evaluation revealed a haemoglobin level of 5.7 g/dL, thrombocytopenia (platelet count: 0.6×104/μL), …