Fig. 3
From: One case of choriocarcinoma sellar region metastasis and literature review
Pathology of sellar region. a HE stain (×100) shows large area of necrosis with a few variant cells. b HE stain (×400) obviously regression abnormity tumor cells. c HCG immunostain (×400) showing HCG expression in tumor cells. d CK immunostain (×400) showing CK expression in tumor cells. Immunohistochemical analysis: CK-P(+), PLAP(−), HCG(+), AFP(−) CD30(−), CD3(focal+), CD20(Individual cells +), Vimentin(−), Syn(−), CgA(−), GFAP(−), CD117(−), PRL(−), GH(−), ACTH(−), LH(−), FSH(−), TSH(−); Ki-67 positive cells: 35 %