Abstract
Thymic carcinoid is a rare tumor. The case of an 86-year-old male with a thymic carcinoid is presented. The patient was discovered to have an abnormal mass, as an incidental finding, at the thoracic inlet during a routine examination. He had slight dysphagia for 6 months. The tumor had displaced the trachea to the right, and compressed the esophagus. A CT scan demonstrated that the tumor was located in the superior mediastinum, and extended to the aortic arch. The preoperative diagnosis was a mediastinal goiter. The tumor was resected completely through a general collar incision, without a median sternotomy. The tumor measured 6.5×5.5×4.5cm in size, was grossly well-encapsulated and was diagnosed histologically as a carcinoid tumor. Mitoticfigures were not seen. The tumor cells had a few argyrophillic granules, and showed positive immunoreactivity for chromogranin A. Electronmicroscopy disclosed small granules with diameters of about 160nm. There were no clinical manifestations suggestive of a specific syndrome, such as a carcinoid syndrome. The patient recieved no postoperative radiation or chemotherapy, and is now quite well at 2 years after the operation.
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