Surgery General 6b2101ef MEN-2A includes A/E - A Ganglioneuromas B Cutaneous Lichenoid amyloids C Mutation in RET in chromosome 10 D Parathyroid adenoma High-Yield Explanation MEN 2A or Sipple's syndrome &. MEN 2B are associated with mutation in the RET protooncogene located in pericentromeric region of chromosome 10.