A neuroendocrine neoplasm that arises from the lung. It is characterized by the presence of uniform polygonal cells with small or moderate amount of cytoplasm and inconspicuous nucleoli. The cells are usually arranged in organoid and trabecular patterns. It is classified as typical or atypical carcinoid tumor based on the number of mitotic figures and the absence or presence of necrosis. Atypical carcinoid tumors have a worse prognosis. The disease is lung carcinoid tumor (MONDO_0006041). Also known as: carcinoid tumor (disease) of lung, carcinoid tumor of lung, carcinoid tumor of the lung, carcinoid tumour (disease) of lung, carcinoid tumour of lung, carcinoid tumour of the lung, lung carcinoid tumor (disease), lung carcinoid tumour (disease).