The endometrium consists of a thick stroma containing numerous irregularly-shaped tubular glands lined by columnar epithelium. This image shows the endometrium in proliferative phase.
In this image, shrinkage of the tissue has created an artifactual space around each gland.
Because of its corkscrew shape, each spiral artery typically appears as an aligned cluster of profiles deep in the endometrium.
The relative smooth contour of the glands is indicative of proliferative phase, in contrast with the more irregular surface shape of glandular epithelium in secretory phase.
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Last updated: 3 April 2002 / dgk