Newborn and 12 week urogenital cells collected from swab and urine specimens (female).

<p>A, Newborn Swab: Two superficial cells, characterized by small, dark, pyknotic nuclei and abundant cytoplasm in top right and left sides. Two intermediate cells, with slightly larger oval nuclei and more open chromatin patterns, are present in the middle and lower left. B, Newborn Urine: Two superficial cells, with small, pyknotic nuclei, are located in the center of the field. Most of the remaining cells are intermediates. C, 12-week Swab: Parabasal cells (upper right) and intermediate cells (lower left) are noted. Superficial cells were seen only rarely in this specimen. D, 12-week Urine: A cluster of four cells with parabasal to intermediate features. The cells show no features of superficial cells, which were completely lacking in this specimen.