Development of Some Organs Derived from the Three Embryonic Germ Layer in a Degus Ectopic Pregnancy and Presence of a Cytotrophoblast That Mimics Human Chorionic Placenta
Figure 3
Normal aspect of the maternal reproductive organs. (a) The uterus evidences the endometrial, myometrial, and perimetrial layers. The lumen of the organ (UL) shows the presence of some type secretion. (b) Transversal sections of the oviduct (OV) displaying normal evaginations of the mucosa layer. (c) Transversal section of an ovary showing the presence of two functional corpora lutea (CL) surrounded by multiples degenerative corpora lutea. Figure 3(d) shows mesenchymal tissue (M) organized as a structure with large blood vessels (BV), with the appearance of an umbilical cord attached to the bigger mass (BM). (a, b, and c) H/E staining; (d) PAP staining; bars: (a) = 223 μm; (b) = 245 μm; (c) = 245 μm and (d) = 223 μm.
