MRI is often preferred over computed tomography because it can distinguish tumors of the deep parotid lobe from neurogenic lesions and carotid body
tumors; MRI also delineates a tumor's relation to the internal carotid artery.
Researchers at Britain's Bristol University found that in rats with high blood pressure, when they removed nerve links between the brain and the carotid body
- a nodule about the size of a grain of rice on the side of each carotid artery - the animals' blood pressure fell and remained low.
The carotid body
is a small nodule- no larger than a rice grain- found on the side of each carotid artery and it appears to be a major culprit in the development and regulation of high blood pressure.
Carotid artery percutaneous stents; Carotid body
tumor resection (Glomectomy); Carotid sinus stimulation; Carotid endarterectomy - Indications, LOS; Carotid/Vertebral Artery Angioplasty and Stenting Procedures; Coronary artery bypass graft (s) surgery (CABG)/Off Pump or Beating Heart CAB - Indications, LOS; Cryoplasty, peripheral arterial
A CT scan of the neck showed a mass that appeared to be at the carotid bifurcation, consistent with a carotid body
tumor (Figure 3).
In the head and neck, these tumours are often mistaken for other lesions such as enlarged lymph nodes, carotid body
tumours, branchial cysts, or thyroid lesions (2,3).
Researchers working in genetics, oncology, biology, biochemistry, pediatrics, neuroscience, and other sciences in North America, Europe, and Australia address vascularization, ARD hydroxylation, hypoxia-inducible factor transcription factors, iron and oxygen homeostasis, mechanisms that lead to cell injury and morbidity or adaption and survival, mitochondria, molecular imaging, AMP-activated protein kinase, oxygen sensing in the carotid body
, DNA modifications, and other topics.
tumors are rare, benign, vascular, slow growing and invasive to adjacent structures.
Carotid chemodectomas are called paragangliomas or carotid body
tumors (Fig 1).
The physiologic benefits of supplemental oxygen are understood: It promotes oxygen supply to the body's tissues and inhibits activity of the carotid body
, which monitors oxygen levels in the blood, explained Dr.
AN has also been implicated in autonomic functions such as respiratory processing mediated by carotid body
receptor (Banks and Harris 1988), suggesting that apart from the PVN, the AN also may be involved in stress-induced autonomic alterations.
The appearance was consistent with a glomus jugulare tumor with the differential diagnosis including other paragangliomas such as carotid body
or intravagal tumor, schwannoma, meningioma, metastasis, and much less likely entities such as parotid tumor or epidermoid cyst.