Fig. 3From: A primary neuroendocrine tumor of the left ventricle presenting with diarrhea—an unusual experience and literature reviewThe image of immunohistochemistry. a represented the tumor cells were dot-like positive for CK (100×). b, c showed diffusely cytoplasmic positive for NSE, CGA respectively in tumor cells (100×). d Tumor cells showed patchy cytoplasmic positive for CD56 (100×)Back to article page