Poorly Differentiated Endometrial Adenocarcinoma with Trophoblastic Differentiation / 대한산부인과학회잡지

ABSTRACT

Trophoblastic differentiation in gynecologic nontrophoblastic tumor is very rare. Here we present a 66-year-old female with poorly differentiated endometrial carcinoma showing trophoblast-like differentiation. This tumor was in advanced stage with metastases to lung, liver, and bone at diagnosis. The multinucleated, syncytiotrophoblast-like cells were positive for beta-human chorionic gonadotropin (beta-hCG) by immunochemical stain. The level of beta-hCG was also elevated (219 mIU/ml) in the patient's serum, but dropped after surgery and chemotherapy. beta-hCG may be used as tumor marker in this case.