Fig. 7From: Mixed adenoneuroendocrine carcinoma of the esophagogastric junction: a case reportImmunohistochemical staining of the NEC revealed positive staining for chromogranin A (a), synaptophysin (b), and CEA (c), and more than 90% of the nuclei were positive for Ki-67 (d). Neither the adenocarcinoma component, nor the NEC component showed positive staining for KIT (e)Back to article page