[Malignant angioblastic mesothelioma of the pericardium (author's transl)].

Report on a malignant angioblastic pericardial mesothelioma of a 43 year old woman. According to formation of typical clefts and tubes and differentiation of blood capillaries and questionable immature blood cells the pericardial boundary tissue is considered as starting zone of the tumor. The pericardial boundary tissue is derived from coelomic eqpithelium.