[A classification of uterine tumors based on embryogenesis].

On the basis of their results of studies of human embryos and foetuses, the authors believe that the myometrium is derived from the primitive mesenchyme, while the endometrium is derived from the coelomic mesothelium. The myometrium is the site of non-specific tumours common to all soft tissues (of other organs): leiomyoma, lipoleiomyoma, leiomyoblastoma, leiomyosarcoma; vascular tumours: angioma, haemangiopericytoma. The endometrium is the site of tumours derived either from the epithelial contingent (of glandular tubules): adenoma, adenocarcinoma; or from the epithelio-connective tissue contingents: mullerian dysplasia, carcinosarcoma (homologous mixed mesodermal tumour).

[Malignant transformation of endometriosis: a hypothesis on its histogenesis].

Carcinomatous degeneration of the endometrium is rarely seen. The authors consider the pathogenesis of this disorder based on two authentic cases. On the basis of their previous studies of the endometrium, the authors suggest that endometriotic centers are simply "dystrophies" developing from subcoelomic mesenchymal cells which although quiescent are still capable of proliferation and differentiation.

[Gliomas of the uterus. Apropos of 3 cases and review of the literature].

We report three cases of uterine gliomas in young women with a past history of pregnancies and abortions. A survey of the literature revealed that the published cases also concerned young women with the identical gynecological history. The general belief is that the cause of uterine gliomas is the transplanting of fetal nervous tissue during local manipulations in early abortions.