Figure 2
From: Primary carcinoid tumor of medulla spinalis: case report and review of the literature
Microphotographs of specimen histology showed plump round cells with a daisy formation (hematoxylin and eosin staining, magnification × 400). (A) Microphotographs of specimen histology showed that the tumor cells were positive for chromogranin (B), synaptophysin (C), cytokeratin (D), vimentin (E) and CD56 (F), and negative for S-100 (G), GFAP (H), pathogenesis related protein (I) and epithelial membrane antigen (J). These findings confirmed the diagnosis of carcinoid tumor (immunohistochemical staining, magnification × 200).