Fig. Pre-ovulatory follicle with specs inside the follicle

Fig. Progression of the follicle towards ovulation. Note that the spherical follicle becoming irregular near ovulation

Fig. Corpus Luteum

Fig. Double ovulations

Fig. Corpus luteum after imminent ovulation. Notice the fluid within the CL

Fig. Anovulatory follicles during transition period

Fig. Accumulation of fluid in the uterus

Fig. Fibrous network development within the growing follicle which will not culminate in ovulation

Fig. Different developmental stages of embryo in mare from day 10 till 18

Fig. Different developmental stages of embryo in mare from day 10 till 30

Fig. Formation of corpus hemorrhagicum (replacement of fluid with blood) after ovulation

Fig. Typical cart wheel or spoke wheel or cut citrus pattern of uterine folds in mid estrus

Fig. Granulosa cell tumor in ovary

Fig. Inactive ovaries with multiple follicle during winter transition

Fig. Hyperedema observed in some mares during mid estrus. This is normal but sometimes the fluid accumulation persisting and leading to endometritis

Fig. Fluid accumulation in the uterus leading to Uterine infection