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Most paragangliomas are asymptomatic, present as a painless mass, or create symptoms such as hypertension, tachycardia, headache, and palpitations. [3] While all contain neurosecretory granules, only in 1–3% of cases is secretion of hormones such as catecholamines abundant enough to be clinically significant; in that case manifestations often resemble those of pheochromocytomas (intra ...
None have been found with the sympathetic ganglia associated with the branches of the trigeminal nerve. The largest chromaffin paraganglion is the organ of Zuckerkandl , it is probably the largest source of circulating catecholamines in the fetus and young infants, and gradually atrophies to microscopic loci.
A glomus tumor (also known as a "solitary glomus tumor" [1]) is a rare neoplasm arising from the glomus body and mainly found under the nail, on the fingertip or in the foot. [2]: 670 They account for less than 2% of all soft tissue tumors. [3] The majority of glomus tumors are benign, but they can also show malignant features. [4]
A gangliocytic paraganglioma is a rare tumour that is typically found in the duodenum and consists of three components: (1) ganglion cells, (2) epithelioid cells (paraganglioma-like) and, (3) spindle cells (schwannoma-like). [1]
Paragangliomas in these patients are mainly localized to the abdomen whereas somatostatinomas are found in the second portion of the duodenum, as shown by imaging or biochemistry. [1] This syndrome is of special interest as finding more than one type of neuroendocrine tumor in one individual is unusual. [ 1 ]
Paragangliomas of the head and neck commonly secrete dopamine, but are referred to as "biochemically silent" because they do not cause the characteristic symptoms associated with a pheochromocytoma. However, methoxytyramine can be utilized to detect the tumors of the head and neck.
The unit was deployed to Pantego, North Carolina, 50 miles east of Pitt County, where they found the narcotics hidden in "several pallets of stone landscape pavers," according to the sheriff's office.
Carney triad (CT), named for J Aidan Carney, is considered to be a specific type of multiple endocrine neoplasia (MEN). The three classically associated tumors are a subset of gastric epithelioid leiomyosarcoma (it is now known that this subset is actually gastrointestinal stromal tumor arising from the interstitial cells of Cajal), pulmonary chondroma, and extra-adrenal paraganglioma.