Ras oncogene mutations in thyroid tumors: polymerase chain reaction-restriction-fragment-length polymorphism analysis from paraffin-embedded tissues.

Abstract excerpt

Ras mutations have been found in thyroid lesions. Different studies have shown different frequencies of mutations among benign and malignant lesions. The presence of point mutations in codons 12 and 13 of the c-K-ras, c-H-ras, and N-ras genes was studied in 58 thyroid lesions (10 nodular goiters, 10 follicular adenomas, and 15 papillary, 10 follicular, and 13 anaplastic carcinomas). DNA was extracted from...

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