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Paragangliomas/pheochromocytomas: clinically oriented genetic testing

dc.contributor.authorMartins, Rute
dc.contributor.authorBugalho, Maria Joao
dc.date.accessioned2018-12-07T14:58:28Z
dc.date.available2018-12-07T14:58:28Z
dc.date.issued2014
dc.description.abstractParagangliomas are rare neuroendocrine tumors that arise in the sympathetic or parasympathetic nervous system. Sympathetic paragangliomas are mainly found in the adrenal medulla (designated pheochromocytomas) but may also have a thoracic, abdominal, or pelvic localization. Parasympathetic paragangliomas are generally located at the head or neck. Knowledge concerning the familial forms of paragangliomas has greatly improved in recent years. Additionally to the genes involved in the classical syndromic forms: VHL gene (von Hippel-Lindau), RET gene (Multiple Endocrine Neoplasia type 2), and NF1 gene (Neurofibromatosis type 1), 10 novel genes have so far been implicated in the occurrence of paragangliomas/pheochromocytomas: SDHA, SDHB, SDHC, SDHD, SDHAF2, TMEM127, MAX, EGLN1, HIF2A, and KIF1B. It is currently accepted that about 35% of the paragangliomas cases are due to germline mutations in one of these genes. Furthermore, somaticmutations of RET, VHL, NF1, MAX, HIF2A, and H-RAS can also be detected. The identification of the mutation responsible for the paraganglioma/pheochromocytoma phenotype in a patient may be crucial in determining the treatment and allowing specific follow-up guidelines, ultimately leading to a better prognosis. Herein, we summarize the most relevant aspects regarding the genetics and clinical aspects of the syndromic and nonsyndromic forms of pheochromocytoma/paraganglioma aiming to provide an algorithm for genetic testing.
dc.identifier.doi10.1155/2014/794187
dc.identifier.issn1687-8337
dc.identifier.issn1687-8345
dc.identifier.urihttp://hdl.handle.net/10400.1/12042
dc.language.isoeng
dc.peerreviewedyes
dc.publisherHindawi Ltd
dc.subjectEndocrine neoplasia type-2
dc.subjectHippel-lindau-disease
dc.subjectTumor-suppressor gene
dc.subjectPolycythemia-paraganglioma syndrome
dc.subjectGenotype-phenotype correlation
dc.subjectMedullary-thyroid carcinoma
dc.subjectRet-mutation-onsortium
dc.subjectGland scaled score
dc.subjectGermline mutations
dc.subjectSuccinate-dehydrogenase
dc.titleParagangliomas/pheochromocytomas: clinically oriented genetic testing
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage794187
oaire.citation.titleInternational Journal of Endocrinology
rcaap.rightsopenAccess
rcaap.typearticle

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