| A rare neuroendocrine neoplasm arising from neural crest-derived paraganglion cells (most often in the para-aortic region at the level of renal hilii, organ of Zuckerkandl, thoracic paraspinal region, bladder and carotid body) not associated with catecholamine secretion. These neoplasms are usually clinically silent and symptoms if present are nonspecific and depend on the location of the neoplasm. Association with certain hereditary cancer-predisposing syndromes, such as multiple endocrine neoplasia, neurofibromatosis type 1 or von Hippel lindau syndrome may be observed. |
