Early pregnancy diagnosis - embryo, cyst or twin?

摘要

Accurate early pregnancy diagnosis can sometimes be a challenge particularly if you have not previously examined the mare. Cysts may be mistaken for an early pregnancy or twin. Detailed breeding history and thorough scanning technique is vital to avoid potentially costly mistakes. Uterine cysts are fluid filled, immobile, anechoic structures. They can occur anywhere in the uterus but often are located at the base of either uterine horn which may increase confusion with diagnosis of single or multiplepregnancies. Cysts may be single or multiple; intra or extra-luminal; regular or irregular in shape; large or small and may be compartmentalised. Cysts often have a thicker, hyperechoic wall compared to a vesicle.