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Abstract:
Considering our own data and after reviewing the literature the following conclusions can be drawn: 1. In 0.41% of all births the incidence of a chorioangioma is to be expected. 2. Small chorioangiomas are much more frequent than large ones. In most cases, they occur solitary, only sometimes multiple. 3. Most of the chorioangiomas are located centrally in placental tissue or at the fetal side in relation to the chorion. 4. A classification of five histological types can be made: Type I: Endotheliomatous chorioangioma; Type II: Capillary chorioangioma; Type III: Cavernous chorioangioma; Type IV: Fibrosing chorioangioma; Type V: Fibroma. 5. There is no significant relationship to the mother's age. The incidence is higher in primipari. The rates of gestones as well as the rates of prematurity and still birth increased with these tumors. 6. Hydramnion as well as fetal complications are entailed with large or multiple tumors.