                                            __________ RSubduralMet
                                     ______|
                                    |      | _ RIngLNMet
               _____________________|      ||
              |                     |       |__ RRib7Met
  ____________|                     |
 |            |                     |____________________________ LAdrenalMet
_|            |
 |            |_____________________________ Primary
 |
 | diploid

