Abstract
Ten years ago we reported one autopsy case of Echovirus Type 11 infection of a male baby who died at the age of 7 days. Recently we had another one autopsy case of Echo-virus Type 11 infection of a male baby who also died at the age of 7 days. We have compared these two cases and obtained following findings.
1) Both cases had hemorrhage of the renal medulla, adrenal medulla, lung and intestine et al. Especially the second case had thrombosis in a small vessel of the gastric sub-mucosa. These were evidence for disseminated intravascular coagulation.
2) Both cases showed lymphocytic meningitis.
3) Both cases showed adrenal cortical cysts and starry sky phenomenon of the thymus. We thought that these findings were combined response to the infections stresser.
4) The second case showed remarkable lymph duct dilatation in the lung, intestinal serosa and thyroid gland. Ascites and pleural effusion were also found but not lymph node enlargement macroscopically. Microscopically the mesenterial lymph nodes showed hemor-rhage but no abnormal finding was seen in the mediastinal lymph nodes
