Fig. 3
From: p.L105Vfs mutation in a family with thymic neuroendocrine tumor combined with MEN1: a case report
Pathological and immunohistochemical results of the IV-1. Legend: On hematoxylin and eosin stain, the tumor cells proliferate with a solid nest-like pattern, and are separate by slight fibrous vascular septum (a). The tumor cells show round to oval, hyperchromatic nuclei and the nucleoli of the tumor cells are inconspicuous, and there were a few mitotic figures (8~10/ 10HPF) (b). On immunohistochemical stain, the tumor cells were strong positive for CD56 (c), CgA (d), Syn (e), CK (f) and NSE (g), and the Ki-67 proliferation index is estimated at 30% (H). The yellow arrow in B is mitotic figure