<prompt> The commonest location for the carcinoid tumor is which of the following?Small intestineBronchusAppendixStomach  <response>: Carcinoid tumor:- Neuroendocrine tumor, most common site being GIT and Lungs being 2nd most common In GIT, most common site is small intestine Composed of cells that contains dense-core neurosecretory granules in their cytoplasm. 