抄録
Adult worms of Dirofilaria immitis were found in the lateral ventricles of the brain of a dog suspected to be rabid. Such case as this seems to be very rare, though there is a report on the invasion. of these worms into the hepatic vein. The symptoms, anatomico-and histopathological findings are as follows:
1) Symptoms. The dog showed the symptoms of canine filariasis consisting of nervous symptoms of unknown origin, such as slight paralysis of the posterior half of the body, a few days before death and a symptom similar to epilepsy on the day of death.
2) Observations at autopsy. Anatomicopathologidal findings were not unusual in all the organs, except the brain and heart. The heart harbored about 40 worms of D. immitis in the right atrium. In the brain, a small spot of hemorrhage was found on the surface of the left piriform lobe, through which D. immitis got into the lateral ventricles. There was a large focus of hemorrhage near the site of invasion.
3) Histopathological findings. Microscopic examination revealed destruction, softening, and remarkable hemorrhage of the tissues. Glial-cell proliferation and perivascular cell infiltration were found around the tissues destroyed by D.immitis. No infiltration of eosinophil cells was observed.
