TOPICS: Epidemiology, smoking, radon, asbestos, pneumonic coin lesion, noncalcified nodule, superior vena cava, recurrent laryngeal nerve, superior stellate ganglion, brachial plexus, small cell carcinoma, central, smokers, chromogranin A, neuron specific enolase, synaptophysin, cushing syndrome, moon facies, buffalo hump, LEMS, presynaptic calcium channels, SIADH, hyponatremia, low serum osmolality, adenocarcinoma, peripheral, mucin, hypertrophic osteoarthropathy, digital clubbing, squamous cell carcinoma, hilar mass, cavitation, hypercalcemia, large cell carcinoma, bronchial carcinoid tumor, carcinoid syndrome