Low frequency of BRAF mutations in adult patients with papillary thyroid cancers following childhood radiation exposure.

Abstract excerpt

Radiation exposure at a young age is the only environmental factor known to cause thyroid cancer, predominantly of the papillary type. We have previously reported a high percentage (86.7%) of RET-positive papillary thyroid cancers in a cohort of individuals exposed to external radiation of the head and neck area before the age of 16. Recently, we and others have reported that point mutations of the BRAF gene...

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