Sporadic or familial head neck paragangliomas enrolled in a single center: Clinical presentation and genotype/phenotype correlations.

22:57 EDT 25th October 2014 | BioPortfolio

Summary of "Sporadic or familial head neck paragangliomas enrolled in a single center: Clinical presentation and genotype/phenotype correlations."


BACKGROUND:
The purpose of this study was to investigate clinical features and prevalence of germline mutations of patients with head/neck paragangliomas.
METHODS:
Genetic analysis on known susceptibility genes for paragangliomas (VHL, RET, SDHB, SDHC, SDHD, and SDHAF2) was performed in 17 consecutive patients with head/neck paraganglioma (age range, 14-82 years) and 17 relatives.
RESULTS:
Head/neck paragangliomas were usually symptomatic with "mass effect" (88.2%), without family history (82.3%), often multifocal (41.2%), never functioning, and malignant. Germline mutations were detected in 7 of 17 patients (41%; 6 SDHD and 1 SDHB). Patients with mutations were younger, with head/neck paragangliomas usually multifocal and with higher biologic aggressiveness than wild-type subjects. To date, 4 families have been studied and the prevalence of carriers was elevated (58.8%). These mutated relatives (age range, 17-71 years) were disease-free, except 4 patients in whom multiple head/neck paragangliomas were detected.
CONCLUSION:
Adequate morpho-functional screening and follow-up and, if possible, genetic testing is advisable in patients with head/neck paraganglioma. © 2012 Wiley Periodicals, Inc. Head Neck, 2012.

Affiliation

Department of Internal Medicine, University of Pisa, Ospedale Santa Chiara, Pisa, Italy.

Journal Details

This article was published in the following journal.

Name: Head & neck
ISSN: 1097-0347
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