[Ultrastructure of pregnancy granuloma (angiogranuloma)]

The granuloma of pregnancy (angiogranuloma) has been studied by light-and electron microscopy. It has been revealed that granuloma of pregnancy consists chiefly of capillaries and undifferentiated connective tissue. It is a hyperplastic proliferative growth developing on the hormonal basis. In the case reported under the basement membrane presence of an electron lucent layer of fibrillar structure has been observed. Authors suppose that this phenomenon later will successfully be used in morphological differential diagnostics.