MSD Manual

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Endometrial cysts, mare
Endometrial cysts, mare

    Sonogram of endometrial cysts in the base of the right horn of a uterus. The examining veterinarian should always “map” the location of any cysts when breeding a mare. Knowledge of cyst location will prevent mistaking a cyst for an early conceptus when the mare is being examined for pregnancy.

Courtesy of Dr. Patricia Sertich.