MSD Manual

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Vaginal cytology typical of the diestrual shift, dog
vaginal-cytology-typical-diestrual-shift-16-davidson-sized
Vaginal cytology typical of the diestrual shift, dog

    Vaginal cytology during this stage is abruptly altered by the reappearance of parabasal epithelial cells and frequently neutrophils, as seen here.

Courtesy of Dr. Autumn Davidson.