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  • Title: Endometrial adenocarcinoma with choriocarcinomatous differentiation in the uterus of a goat.
    Author: Kawashima M, Segawa R, Yoshida T, Murayama H, Nagahara R, Kimura M, Endo N, Tanaka T, Shibutani M.
    Journal: J Vet Med Sci; 2017 Jun 29; 79(6):1091-1095. PubMed ID: 28529267.
    Abstract:
    An 11-year-old female goat had invasive and metastatic endometrial adenocarcinoma in the uterus. There was a notable proliferation of endometrial epithelial cells in a tubular growth pattern, with a desmoplastic response. The endometrial epithelial tumor cells metastasized to the kidney, liver and lung. In contrast to the primary and metastatic tumor cells, pleomorphic tumor cells with a choriocarcinoma-like growth pattern infiltrated the mesometrium. Cell proliferation activity was high in both types of tumor cells. Both types of tumor cells expressed cytokeratins AE1/AE3, 7 and CAM5.2; choriocarcinomatous cells also had positive immunoreactions to human chorionic gonadotropin, human placental alkaline phosphatase and α-inhibin. The present case was diagnosed as endometrial adenocarcinoma with choriocarcinomatous differentiation.
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