Paraganglioma

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paraganglioma

(Science: radiology) (glomus tumour) chemodectoma, arise from extra-adrenal portions of paraganglion system, females more than males, 5% most likely to be multiple, associated with branchial arch mesodermal derivatives, sites: carotid bifurcation (glomus jugulare), middle ear (glomus tympanicum), along vagus nerve (glomus vagale), also: larynx, orbit, nose, aortic arch