A 63-year-old white man with hyperparathyroidism had symptoms suggestive of a dissecting aneurysm and superior vena cava obstruction. Urgent exploration revealed a large mediastinal hematoma caused by hemorrhage surrounding a parathyroid adenoma. This case is believed to represent the first one of such a presentation by a parathyroid tumor. The patient was successfully treated by emergency aortic angiography, prompt mediastinal and neck exploration, and resection of the adenoma.
Berry BE, Carpenter PC, Fulton RE, Danielson GK. Mediastinal Hemorrhage From Parathyroid Adenoma Simulating Dissecting Aneurysm. Arch Surg. 1974;108(5):740–741. doi:10.1001/archsurg.1974.01350290102019
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