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CASE REPORTS
JOURNAL ARTICLE
Hereditary paraganglioma.
Journal of Internal Medicine 1999 July
Head and neck paraganglioma is a rare tumour, especially in its familial form. We report a case of a multifocal head and neck paraganglioma in a young man with a family history of cervical tumours. At the age of 24, exploration of a left cervical swelling disclosed jugulotympanic and carotid body paragangliomas. Surgical removal of both tumours was performed. Two years later, a right carotid body as well as vagal paragangliomas were discovered. Follow-up at age 30 demonstrated relapse of the bilateral cervical paragangliomas, but also aortopulmonary and mesogastric paragangliomas. Cervical paragangliomas were also detected in the patient's sister and daughter, but not in his father. Furthermore, the proband's paternal grandmother and a maternal great-uncle had a history of 'neck scar'. This family history is suggestive of an autosomal dominant pattern of inheritance with maternal genomic imprinting. Genetic analysis of paraganglioma kindreds showed linkage with two different loci: 11q13.1 and 11q22.3-q23. Further knowledge of the genes involved could provide early diagnosis and accurate genetic counselling in affected families. Thorough familial investigation is consequently mandatory in all head and neck paragangliomas, especially in younger patients with multiple localizations, as surgical removal is safer at an early stage.
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