[A space-occupying lesion of the placenta in the 3d trimester with progressive placental insufficiency].

The discovery of a placenta tumour should entail frequent sonographical examinations regarding the fact that most focal placenta lesions lead to adverse effects in the further course of pregnancy, resulting in premature termination of the pregnancy. Especially size, consistency, and, as reported in this case, location of the discovered tumor are of great importance for resulting diagnostical-therapeutical measures.