(A) and (B) Endometrioid adenocarcinoma with a cribriform glandular architecture. Foci of benign squamous (morular) metaplasia (arrows) are present between glandular structures. Haematoxylin and eosin; objective magnification ×20 (A), ×40 (B). (C) Alcian blue and PAS-positive cytoplasmic mucin (arrows) in the mucinous but not the endometrioid glands. Objective magnification ×40.