Fig. 2. (A) Mass 1 is composed of adenocarcinoma and grade 2 neuroendocrine tumor (H&E, ×40) Adenocarcinoma component (arrowed), Neuroendocrine tumor component (encircled). (B) An enlarged view of adenocarcinoma component (30%) with tubular, moderately differentiated (H&E, ×100). (C) An enlarged view of neuroendocrine tumor component (70%) with grade 2 neuroendocrine neoplasm by World Health Organization 2010 (H&E, ×200). (D) Mitosis is present: 2/10 HPFs (H&E, ×400).