question: I have had MGUS for two years, with mildly high calcium levels, also two painless lumps for two years in lymtph nodes in my groin, I have had a lytic lesion on my humerus in my left arm and recently, three weeks ago developed a golf sized lump on my forearm bone which is mildly painful. My doctor put the arm lump off as a bone spur but she did not have my medical records yet and didn't know I have had MGUS for years, Do you think this is anything I should have biopsied?