metastatic neuroendocrine carcinomapancreatic neuroendocrine carcinomacarcinoma with neuroendocrine featuresneuroendocrine carcinoma cancergastric neuroendocrine carcinomathymic neuroendocrine carcinomaneuroendocrine carcinoma colonneuroendocrine carcinoma liverneuroendocrine carcinoma of the cervixneuroendocrine carcinoma lungsmall cell neuroendocrine carcinomaneuroendocrine carcinoma of the skin