para-aortic bodies

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para-aortic bodies

small masses of chromaffin cells near the sympathetic ganglia along the abdominal aorta that secrete norepinephrine. They reach their maximum size during fetal life and then degenerate during childhood as the adrenal medulla matures. Tumors of these structures produce symptoms similar to those of pheochromocytoma. Called also organs of Zuckerkandl.

par·a-a·or·tic bod·ies

small masses of chromaffin tissue found near the sympathetic ganglia along the aorta; they are more prominent during fetal life. The chromaffin cells secrete noradrenalin; chemoreceptive endings monitor levels of blood gases.


beside the aorta.

para-aortic bodies
see para-aortic body.
References in periodicals archive ?
They are most frequently found in the organ of Zuckerkandl but can be found anywhere along the sympathetic chain.
They are frequently seen in the organ of Zuckerkandl, near the inferior mesenteric artery origin.
90% of these extra-adrenal PGLs are located in the abdomen, mainly in chromaffin cells of the organ of Zuckerkandl.
They are most frequently found in the organ of Zuckerkandl (around the root of the inferior mesenteric artery), but it also may be uncovered in other locations, such as retroperitoneum and the urinary bladder.
Sympathetic paragangliomas almost exclusively occur in the abdomen (98%), with the Organ of Zuckerkandl near the aortic bifurcation being the predominant location, as in this case (Donahue 2008).
Extra-adrenal pheochromocytoma involving the organ of Zuckerkandl.
8,9) Normal paraganglionic tissue has also been described at the root of the inferior mesenteric artery, which serves as the superior limit of the organ of Zuckerkandl.
3) Most are located within the abdomen in association with the celiac, superior mesenteric, inferior mesenteric ganglia and Organ of Zuckerkandl.
Extra-adrenal paragangliomas are usually intra-abdominal and arise around the renal hilum, the adrenal gland or organ of Zuckerkandl, but approximately 10% of these tumours occur in the urinary bladder and account for less than 0.
The area known as the organ of Zuckerkandl (aorticosympathetic group) encompasses all extra-adrenal chromaffin tissue near the origin of the inferior mesenteric artery and the aortic bifurcation.