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Ultrasound (Ovarian) on cycle day 13
Photograph of a transvaginal ultrasound revealing an ovary on cycle day 13 (pre-ovulation phase). The dominant follicle is 19mm in diameter (usually follicles are about 18-30mm in diameter at the time of ovulation). The interface between the follicular (antral) fluid and the surrounding granulosa cells often becomes “fuzzy” just prior to ovulation. | |||||||||||||||||||
