Fig. 3From: Intestinal metastasis from choriocarcinoma: a case series and literature reviewThe biopsy pathology and immunohistochemistry of Patient B. HE staining shows some heterotypic cells with hyperchromatic nuclei in denatured necrotic structures. The β-hCG is positive for the heterotypic cells, which are considered as syncytiotrophoblast cells. A HE staining, 10× magnification. B Immunostaining for β-hCG, 40× magnificationBack to article page