Post-mortem arteriography, properly carried out, visualizes the whole extent of the arterial vascular system. The intimate relationship of parenchymatous organs to their arterial supply makes it possible to identify and localize the individual structure, even where there are abnormalities. Arteriography has never been methodically applied to post-mortem examinations of fetuses and perinates. Two cases selected from a material of 100 consecutive fetuses and perinates thus examined document that even though the external appearance of fetuses and perinates is normal, there may be severe internal congenital malformations.