In Subjects #5 and #11, SHIP2 has no contributory role to their lymphedema but both subjects had later onset of symptoms (27 yrs and 47 yrs respectively) and additional lymphatic insults which either exacerbated (breast cancer surgery in Subject #5) or triggered edema (self-reported>14 hour long flight in Subject #11). The gene discussed is INPPL1; the disease is breast cancer.