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Figure 2e. Bronchial carcinoid tumor in four patients. (a) CT pulmonary angiogram obtained for evaluation of suspected pulmonary embolic disease shows a small intrabronchial carcinoid tumor in the right main bronchus (arrow) and a thrombus in the left inferior pulmonary artery (arrowhead). (b) Contrast-enhanced chest CT image obtained in another patient shows a partial collapse of the lower lobe of the right lung, caused by a calcified atypical carcinoid tumor (arrow). (c) Axial thoracic CT image demonstrates a typical bronchial carcinoid tumor in the periphery of the right lung. (d) Planar scintigram obtained with indium 111 (111In)-octreotide shows a focal area of radiotracer uptake (arrow) in the right hemithorax. (e) CT image obtained in the same patient as d shows a small right pulmonary nodule (arrow) that corresponds to the focal area of uptake in d. The patient had ectopic ACTH-induced Cushing syndrome due to a functional bronchial carcinoid tumor, which resolved after resection of the nodule. (Figs 2d and 2e courtesy of John Rees, MD, University Hospital of Wales, Cardiff, Wales.)
