Intrathoracic chemodectomas are extremely rare tumours, the number, published up to the present time being less than 50. We wish to report here four personal cases, all resected. The diagnosis was never made before surgery but solely by histopathology. The course was benign in two cases and malignant with slow progression in one case and malignant with rapid progression in the other. On the basis of these four cases, a general review is undertaken of this particular site on the basis of publications in the literature.
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Background: Vagus nerve paragangliomas are rare tumors, comprising 0.03% of head and neck neoplasms. These tumors are usually located cephalad to the hyoid bone, and there is only one previously reported case that arose from the lower third of the neck.
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Division of Cardiovascular Surgery, Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Background: Aortopulmonary mediastinal paragangliomas are rare. Complete resection of the tumor is desirable regardless of tumor size in view of the risk of sudden death induced by adjacent organ compression and poor prognosis after partial resection or untreated observation. Due to the hypervascularity of the tumor, the risk of intraoperative bleeding is significant, and cardiopulmonary bypass is often required for complete resection.
View Article and Find Full Text PDFA case of cervico-mediastinal paraganglioma mimicking an ectopic goiter.
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September 2021
Division of Thoracic Surgery, University of Modena and Reggio Emilia, Modena, Italy. Electronic address:
Introduction And Importance: Mediastinal paragangliomas are rare neuroendocrine tumors that originate from extra-adrenal paraganglia, occasionally secreting catecholamines. Nonfunctional mediastinal paragangliomas present nonspecific clinical and radiological features and represent a diagnostic challenge.
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Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL, USA.
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