MRCP UK EXAMINATIONS

A 7-year-old child, on the 3ld week of disease, presented with hectic fever, skin and sclera icterus. He died soon of the hepatorenal failure. An autopsy reveled in a rectum many irregular form defects with uneven edges. These defects were covered by grey-white membranes, intimately soldered to a tissue underneath. In addition, there was a purulent thrombophlebitis of the intestinal vessels. Plural pylephlebitic abscesses and fatty dystrophy of hepatocytes were diagnosed in a liver. An acute necrotic nephrosis was found in kidneys. What disease caused a lethal outcome?