The Visual Guide to
Porcine Reproduction
Placenta: Abnormal Placenta
![Chorioallantoic Cysts.](images/po00044.jpg)
Chorioallantoic Cysts.
The larger white areas are chorioallantoic cysts. The smaller grey areas are the areolae opposing openings of the uterine glands.
Roberts SJ (1973)