VATS Resection of a Posterior Mediastinal Tumor of the Superior Sulcus
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Paragangliomas are neuroendocrine tumors originating from chromaffin cells located in extra-adrenal sympathetic ganglia. They are also called extra-adrenal pheochromocytomas, and they can be classified as functional or nonfunctional according to their ability to produce and release catecholamines. Most paragangliomas are found incidentally or secondary to compressive symptoms. Functional paragangliomas are extremely rare but do account for some cases that present with persistent hypertension.
Paragangliomas can occur in the abdomen (80-95%), chest (10%), pelvis or head and neck (5%), and mediastinum (1-2%). When they occur in the mediastinum, they are usually found in the posterior mediastinum along the sympathetic plexus.
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