paraganglia


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paraganglion

 [par″ah-gang´gle-on] (pl. paragan´glia)
a collection of chromaffin cells, derived from neural ectoderm, occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in relation to the aorta and its branches. Most, if not all, of the paraganglia secrete epinephrine or norepinephrine.

par·a·gan·gli·a

(par'ă-gang'glē-ă),
Plural of paraganglion.

par·a·gan·gli·a

(par'ă-gang'glē-ă)
Plural of paraganglion.

paraganglia

(păr″ă-găng′lē-ă) paraganglion [″ + ganglion, knot]
Groups of chromaffin cells, similar in staining reaction to cells of the adrenal medulla, associated anatomically and embryologically with the sympathetic system. They are located in various organs and parts of the body.
References in periodicals archive ?
Paragangliomas are rare neuroendocrine tumours that arise from extra-adrenal paraganglia and consist of specialized catecholamine-secreting chromaffin cells.
Lack EE: Tumors of the adrenal gland and extra-adrenal paraganglia.
They can present anywhere along the sympathetic paraganglia chains from the neck to the pelvis, but they occur most often intra-abdominally in the periaortic region and the organ of Zuckerkandl.
US and European pathologists offer a broad reference to diseases of the endocrine organs--the thyroid, parathyroid, pituitary, adrenal glands and the paraganglia.
Cytokine receptors have been identified in the limbic structures of the brain, peripherally in the paraganglia of the spinal cord, and on lymphocytes.
Paraganglioma originates from chromaffin cells of adrenal medulla and autonomic paraganglia, which are derived from the neural crest cells.
Paragangliomas are uncommon neuroendocrine tumors, arising from the neural crest-derived paraganglia of the autonomic nervous system.
They are found in many tissues such as the adrenal medulla, the carotid bodies, the organs of Zuckerkandl, and the paraganglia of the sympathetic and parasympathetic neurons.
Laryngeal paragangliomas are rare neoplasms that originate in the neural crest cells of the laryngeal paraganglia.
Paragangliomas are uncommon neoplasms that can arise in extra-adrenal paraganglia or in the adrenal medulla, with the latter conventionally classified as pheochromocytomas.
Pheochromocytomas of the urinary bladder probably arise in the paraganglia of the visceral (autonomic) nervous system, located submucosally either in the dome or in the posterior wall, close to the trigone.
Pheochromocytoma is usually a benign tumor of the chromaffin tissue of the adrenal medulla or sympathetic paraganglia.