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chemodectoma

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chemodectoma /che·mo·dec·to·ma/ (-dek-to´mah) any benign, chromaffin-negative tumor of the chemoreceptor system, e.g., a carotid body tumor or glomus jugulare tumor.
che·mo·dec·to·ma (km-dk-tm)
n.
A relatively rare, usually benign tumor originating in chemoreceptor tissue. Also called aortic-body tumor, carotid-body tumor, glomus jugulare tumor, nonchromaffin paraganglioma.

chemodectoma [ke″mo-dek-to´mah]
any benign, chromaffin-negative tumor of the chemoreceptor system, such as a tumor of the carotid, aortic, or tympanic body.

chemodectoma
nonchromaffin paraganglionoma: any tumor of the chemoreceptor system, e.g. a carotid body tumor, aortic body tumor. Brachycephalic breeds of dogs are predisposed, possibly due to genetic factors and chronic hypoxia.


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INTRODUCTION Chemodectoma is one of possible non atherosclerotic pathologies of the neck that include vessel thromboembolism, dissecting aneurysms, fibromuscular dysplasia, Takayasu's arteritis, pseudoaneurysms and arteriovenous fistulae.
Several different factors can cause the tympanic membrane to assume a blue color, including a true hemotympanum, an idiopathic hemotympanum secondary to a cholesterol granuloma, long-standing secretory otitis media, a dehiscent high-riding jugular bulb, and occasionally a chemodectoma.
[3] A search for publications indexing cardiac pheochromocytomas, chemodectomas, and paragangliomas yielded mostly single surgical case reports.
 
 
 
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