para-aortic bodies

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para-aortic bodies

 [par″ah-a-or´tik]
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

[TA]
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.
References in periodicals archive ?
Radical hysterectomy with at least excision of about 4 cm of the vaginal wall, with bilateral oophorectomy (due to her menopausal status), complete pelvic lymph node dissection, and Para-aortic lymph node sampling were done for her.
Below the diaphragm upper abdominal para-aortic soft tissue appears contiguous with the mediastinal mass.Chest radiograph (D) after7 days of induction chemotherapy shows significant improvement in right lung aeration, mild effusion, and partial lung collapse.
Contrast abdominal MRI revealed a left para-aortic nodule, 36/30/32 mm in size, neighboring the caudal end of the renal arteries, probably of mesenteric origin (Figure 2).
Surgical staging included total hysterectomy, bilateral salpingo-oophorectomy, pelvic lymphadenectomy, and para-aortic lymphadenectomy, if necessary.
All had cervical lymph nodes, 16 had axillary nodes, 3 had para-aortic nodes, 3 had inguinal lymphadenopathy and 3 had epitrochlear involvement.
(16) In our cohort of patients on surveillance, only two relapses (2%) were to supradiaphragmatic sites, and both were associated with either para-aortic or inguinal nodal metastases.
The two para-aortic LNs, which later expanded, remained within the normal size range (6.4 [+ or -] 0.3 and 7.1 [+ or -] 0.8 mm, resp., Figures 1(g)-1(h)).
In addition, conglomerated lymph nodes with 4 cm in size were detected in the para-aortic region.
The next hypothesis was that the metastasis to the right pulmonary node was via the para-aortic lymphatic system, originating from small peritumour lymphatics associated with the primary adenocarcinoma.
For patients with large tumors (> 2 cm), para-aortic lymph node sampling was performed.
Ruptured SOV aneurysms can predispose to formation of para-aortic abscess and endocarditis (15).
Abdominal computed tomography showed a low-density para-aortic mass surrounding the renal artery, as well as an endovascular metal stent attached to the left renal artery and abdominal aorta [Figure 2].