Fig. 6From: Nondegenerated cystic neuroendocrine tumor of the pancreas: a case reportHistopathological findings for the resected pancreas. a Tumor cells had ribbon-like hyperplasia and gland-like structures. There were small blood vessels around the cells and no mitotic figures at 10 hpf (hematoxylin and eosin staining). b and c Tumor cells showed positive results for INSM1 (b) and synaptophysin (c) by immunohistochemical stainingBack to article page