Materials and methods. The literature data are analyzed and own observation of a new-born girl with a Galen vein aneurysm are analyzed and presented. In the literature, the term aneurysm of the vein of Galen refer to various malformations of the cerebral vessels, accompanied by the expansion of the Galen vein. In the present observation at the 30-week of the gestation, Galen's aneurysm was detected in the fetus during an ultrasound of the pregnant woman. At the 33 weeks pregnancy, the delivery by cesarean section was carried out a in connection with the beginning of labor activity and the development of disorders of the uterine-placental blood flow. Despite the intensive therapy, the newborn died at the age of 2 days 15 hours 46 minutes. Galen vein aneurysm, brain lesions and myogenic dilatation of the cardiac cavities according to clinical examination, as well as post-mortem radiological and autopsy studies, were detected. The per-formance of post-mortem CT with contrast enhancement was an important point of the comprehensive autopsy study. It allowed to carry out a non-invasive objective and exact analysis of the pathology of blood vessels and verification of the aneurysm of the vein of Galen III type.

Results and conclusion. Consequently, the conduct of post-mortem CT with the intro-duction of radiopaque substances significantly increases the efficiency of post-mortem examinations of a newborn´s body with congenital abnormalities of blood vessels.