Abstract:
Background
Decidualization is the process of growth of stromal cells of the endometrium into decidual ones that begin
around the spiral arteries and subsequently spread to the entire endometrium during the late secretory phase of the
menstrual cycle.
Features of the development of cytotrophoblast migration during a tubal pregnancy are of great interest.
This is explained not only by the possibility of obtaining a more complete understanding of the properties of the
cytotrophoblast and the mechanisms of the development of its invasion in ectopic conditions, but also by establishing
a treatment.
Material and methods
This publication represents a review of the literature on the physiological changes of the endometrium in particular
in the case of the presence of the gestational sac in the Fallopian tube.
Results
Ectopic cytotrophoblastic invasion possesses events similar to the uterine one: its onset coincides with the period
of formation of mesenchymal villi and the source of invasive cytotrophoblast are anchor villi with the destination of
three zones of the depth of invasion, accompanied by gestational reorganization of the arteries, as a result chorial villi
can sometimes be limited to the envelopes of the mucous of the endosalpinx or overcome the muscular and serous
tunic, with perforation of the Fallopian tube.
Conclusions
In all of the cases, regardless of the pathogenic variant of tubal pregnancy, different degrees of severity of dystrophy
transformation of the villous chorion are determined locally or diffusely.
