Micrograph showing<unk>  in endometrium<unk> , also<unk><unk>  phenomenon, is a benign change in the endometrium associated with the presence of chorionic tissue.<unk>  is due to progesterone primarily. Cytologically, it looks like a malignancy and, historically, it was diagnosed as endometrial cancer.
Arias-Stella reaction
Movat's stain
Jones' stain
Romanowsky stain
Wayson stain
Feulgen stain
Bielschowsky stain
Poppy seed test