chemodectoma


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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 ?
These markers can be used to distinguish mesotheliomas from adenocarcinomas, which do not express vimentin, and chemodectomas, which do not express vimentin or cytokeratins.
Garcin's syndrome in a patient with a malignant chemodectoma of the neck.
The malignant type of chemodectoma cannot be predicted by the initial clinical presentation or by the histologic appearance.
The limits of ultrasound evaluation is the diagnosis of chemodectoma arising from vagal glomus or in temporal bone and a precise vascular definition of the tumor vessel.
Carotid chemodectomas are called paragangliomas or carotid body tumors (Fig 1).
3] A search for publications indexing cardiac pheochromocytomas, chemodectomas, and paragangliomas yielded mostly single surgical case reports.
Denecke was a pioneer in the field of tumor surgery of the lateral skull base, especially in the difficult surgery of extended chemodectomas of the petrous pyramid and the jugular glomus.