Fig. 2

Amphicrine carcinoma with a low-grade pattern (case 4). a Small tumor clusters with lumens and peripheral placement of nuclei, ×100. b Well-formed tubules comprising goblet-like mucinous cells, ×400. c Diffuse positive staining for synaptophysin, ×200. d Paranuclear dot-like immunostaining of chromogranin A, ×200. e Immunostaining of Ki67, ×200. f Intracellular positivity for Alcian blue staining, ×200