Organ Systems, Gynecological, Uterus Endometrial Stromal Sarconoma October 10, 2017 peferguson IHC Characteristics ER Positive PR Positive Beta-Catenin Strong nuclear positivity in 67% AE1/AE3 +/- (~50%+, usually due to CK19) References Mod Pathol 2008;21:756 Hum Pathol 2008;39:1459 Share this: Share on X (Opens in new window) X Share on WhatsApp (Opens in new window) WhatsApp Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on LinkedIn (Opens in new window) LinkedIn Related