chemodectoma

(redirected from aortic body tumor)
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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.

che·mo·dec·to·ma

(kē'mō-dek-tō'mă),
Aortic body, carotid body, chemoreceptor, or glomus jugulare tumor; nonchromaffin paraganglioma; receptoma; a relatively rare, usually benign neoplasm originating in the chemoreceptor tissue of the carotid body, glomus jugulare, and aortic bodies; consisting histologically of rounded or ovoid hyperchromatic cells that tend to be grouped in an alveoluslike pattern within a scant to moderate amount of fibrous stroma and a few large thin-walled vascular channels. Compare: paraganglioma.
[chemo- + G. dektēs, receiver, fr. dechomai, to receive, + -oma, tumor]

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.

chemodectoma

(1) Paraganglioma. 
(2) Carotid body tumour, see there.

che·mo·dec·to·ma

(kē'mō-dek-tō'mă)
A relatively rare, usually benign neoplasm originating in the chemoreceptor tissue of the carotid body, glomus jugulare, and aortic bodies.
Compare: paraganglioma
Synonym(s): glomus jugulare tumor.
[chemo- + G. dektēs, receiver, fr. dechomai, to receive, + -oma, tumor]

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.
References in periodicals archive ?
Aortic body tumors are located at the base of the heart within the pericardial sac, and are more frequently observed between the aorta and the pulmonary artery (JOHNSON, 1968).
These represent cases of aortic body tumors diagnosed by histopathology at the Laboratory of Veterinary Pathology, Universidade Estadual de Londrina, during 1993-2006, and are from dogs submitted for routine necropsy after euthanasia or spontaneous death.
Six cases of aortic body tumors were diagnosed in dogs by histopathology during the 13year evaluation period.