Fig. 1
From: Two cases of lung neuroendocrine carcinoma with carcinoid morphology
Radiological image and histopathological findings in case 1. a CT showed a 1.6-cm mass in the peripheral zone of right S4. b Solid growth pattern was seen with central small necrosis. Two mitotic figures (red arrows) were observed (hematoxylin and eosin stain, × 40). c Tumor cells found positive for chromogranin A. d Tumor cells found positive for synaptophysin. e 40% of tumor cells found positive for Ki67. f SSTR-2 staining showed presence of a membranous pattern of staining in less than 50% of tumor cells (score 2). +−