Fig. 2
From: Two cases of lung neuroendocrine carcinoma with carcinoid morphology
Radiological image and histopathological findings in case 2. a CT showed a 1.4 cm mass in the peripheral zone of right S3. b Solid proliferation of round-to-ovoid tumor cells were seen and two mitotic figures (red arrows) can be seen in this hematoxylin and eosin staining micrograph (× 40). c Tumor cells found positive for chromogranin A. d Tumor cells found positive for synaptophysin. e 27% of tumor cells were positive for Ki67. f Tumor cells found absent of SSTR-2 immunoreactivity (score 0)