Could you kindly advise the meaning of "fetal brain lateral ventricles look slightly prominent". Calibers about 9.2mm, 9.5mm?

Fetal brain has exce. It means that the parts of the fetal brain that hold neural fluid have a slightly increased amount of fluid. It is not uncommon, usually goes away but in some cases can be the beginning of something serious. It needs to be followed with an additional scan.