[A sympathogonioma of the mediastinum in a stillborn]

A case of sympathogonioma of the mediastinum in a stillborn is described. Considerable size of the tumour, compression of the major vessels, the mediastinum organs by this tumour at the time of expulsion, when functional loading on the fetus's organism increased, account for the development of intrauterine asphyxia, the latter being the immediate cause of death.