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
MEN-2A includes A/E -
assistant
The correct answer is  MEN 2A or Sipple's syndrome &. MEN 2B are associated with mutation in the RET protooncogene located in pericentromeric region of chromosome 10.