Early Implantation Site in Endometrium

Early Implantation Site in Endometrium •No villi are identified in this view of implantation site. •Black arrows point to spiral arteries which are undergoing remodelling by intermediate trophoblast to become uteroplacental (decidual) arteries. •Numerous lymphocytes seen in between vessels are normal. (Description By:Melinda Sanders,M.D. ) (Image Contrib. by:Melinda Sanders,M.D. UCHC )