system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following is not a feature of Papillary carcinoma of thyroid?
assistant
The correct answer is  Most papillary carcinomas have gain-of-function mutations or rearrangements involving: RET gene NTRK1 receptor tyrosine kinases Serine/threonine kinase BRAF, which is component of MAPK pathway. RAS mutations are seen in follicular carcinoma of thyroid.