cytotrophoblastic shell

cy·to·tro·pho·blas·tic shell

the external layer of fetally derived trophoblastic cells on the maternal surface of the placenta.
References in periodicals archive ?
sup][42] Extravillous cytotrophoblasts formed the cytotrophoblastic shell which stabilized the interaction between embryo and decidua of uterus.
Maternal blood coagulation factor XIII is associated with the development of cytotrophoblastic shell.