paraganglioma


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paraganglioma

 [par″ah-gang″gle-o´mah]
a tumor of the tissue composing the paraganglia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

par·a·gan·gli·o·ma

(par'ă-gang'glē-ō'mă),
A neoplasm usually derived from the chemoreceptor tissue of a paraganglion, such as the carotid body, or the medulla of the adrenal gland; the latter is usually termed a chromaffinoma or pheochromocytoma.
Farlex Partner Medical Dictionary © Farlex 2012

paraganglioma

An uncommon neuroendocrine tumour often of the head and neck which arises in neural crest and is more common in women; 2 to 9% of carotid body, vagal body and jugulo-tympanic paragangliomas are malignant vs. 25% of those in the larynx. Paragangliomas are part of Carney’s triad (extraadrenal paraganglioma, GIST, pulmonary chondroma), and occur in von Hippel-Lindau syndrome..
 
Clinical findings
Pulsatile mass, tinnitus.

Sites
Carotid body (60%), jugulotympanic, glomus vagale.

DiffDx
Neuroendocrine tumours—e.g., carcinoid, haemangiopericytoma, neuroendocrine carcinoma, medullary carcinoma of thyroid, middle ear adenoma, meningioma.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

paraganglioma

Oncology A head & neck neural crest tumor more common in ♀; 2-9% of PGs in carotid body, vagal body and jugulo-tympanic region are malignant; 25% of laryngeal PGs are malignant. See Zellballen.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

par·a·gan·gli·o·ma

(par'ă-gang-glē-ō'mă)
A neoplasm usually derived from the chromoreceptor tissue of a paraganglion, such as the carotid body, or the medulla of the suprarenal gland; the latter is usually termed a chromaffinoma or pheochromocytoma.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

par·a·gan·gli·o·ma

(par'ă-gang-glē-ō'mă)
A neoplasm usually derived from the chromoreceptor tissue of a paraganglion or the medulla of the suprarenal gland.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Zitsch III, "Sphenoid sinus paraganglioma: first reported case," American Journal of Otolaryngology, vol.
Roncellin et al., "A decade (2001-2010) of genetic testing for pheochromocytoma and paraganglioma," Hormone and Metabolic Research, vol.
GP are composed of three cell types: (1) epithelioid cells resembling well-differentiated neuroendocrine tumors or paraganglioma in both cytologic and architectural features; (2) spindled cells resembling those seen in peripheral nerve sheath tumors; and (3) ganglion-like cells with characteristic abundant cytoplasm and prominent nucleoli (Figure 3).
Intestinal pseudo-obstruction as a complication of paragangliomas: case report and literature review.
[5] described the first case of simultaneous VS and MEP affecting both sides and proposed a wait-and-scan policy for hearing preservation purposes also due to the limited size of the VS, while the larger paraganglioma was treated with embolization and radiotherapy.
Os paragangliomas foram denominados, primariamente, quimiodectomas.
SDH5, a gene required for flavination of succinate dehydrogenase, is mutated in paraganglioma. Science 2009;325:1139-42.
Also, in four patients with paraganglioma, pheochromocytoma, parathyroid adenoma, and carcinoid tumors, who were monitored throughout their treatment course, CgA dropped sharply in the post-treatment phase within days, weeks or months, depending on the tumor.
Key Words: Spectrum, glioma, meningioma, neurofibroma, medulloblastoma, medulloepithelioma, craniopharyngioma, paraganglioma.
Endocrine specialists gradually increased phenoxybenzamine to 60 mg every 8 hours and propranolol to 60 mg every 8 hours, over a two-week period of medical optimization prior to surgical resection of the paraganglioma. An arterial line was placed for careful hemodynamic monitoring.
Fung et al., "The importance of the interpretation of urine catecholamines is essential for the diagnosis and management of patient with dopamine-secreting paraganglioma," Annals of Clinical Biochemistry, vol.
We would like to emphasize that clinicians and pathologist should be aware of the existence of gangliocytic paraganglioma (GP), which is often misdiagnosed as NET G1 [6].