Head & neck · 2014
Novel germline SDHD mutation in a patient with recurrent familial carotid body tumor and concomitant pheochromocytoma.
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Kim Eun Sook, Kim Su Yeon, Mo Eun Young, Jang Dong Kyu, Moon Sung Dae, Han Je Ho
Аннотация
BACKGROUND: Recent advances in genetics revealed that 25% to 30% of head and neck paragangliomas (PGLs) are inherited tumors associated with germline mutation, mainly in the succinate dehydrogenase (SDH) gene.
METHODS: DNA was isolated from whole blood and polymerase chain reaction (PCR) products were sequenced with an ABI3730 × 1 Genetic Analyzer.
RESULTS: A 30-year-old Korean woman underwent resection of a carotid PGL. Fourteen years later, she was readmitted for a cervical mass. (18) F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT revealed a hot spot in the adrenal gland, besides the carotid mass. Surgical pathology confirmed recurrence of the carotid PGL and a concomitant pheochromocytoma. Genetic analysis revealed SDHD c.119del T (p.I40TfsX46) mutation. One daughter has been identified as a carrier.
CONCLUSION: We found a novel SDHD mutation from a Korean family that shows similar clinical features to those in other SDHD mutations, mostly from Western countries. Further studies are needed to determine whether similar genotype-phenotype correlations exist in the Asian patients with familial PGLs.
METHODS: DNA was isolated from whole blood and polymerase chain reaction (PCR) products were sequenced with an ABI3730 × 1 Genetic Analyzer.
RESULTS: A 30-year-old Korean woman underwent resection of a carotid PGL. Fourteen years later, she was readmitted for a cervical mass. (18) F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT revealed a hot spot in the adrenal gland, besides the carotid mass. Surgical pathology confirmed recurrence of the carotid PGL and a concomitant pheochromocytoma. Genetic analysis revealed SDHD c.119del T (p.I40TfsX46) mutation. One daughter has been identified as a carrier.
CONCLUSION: We found a novel SDHD mutation from a Korean family that shows similar clinical features to those in other SDHD mutations, mostly from Western countries. Further studies are needed to determine whether similar genotype-phenotype correlations exist in the Asian patients with familial PGLs.