The Gamma Globulins

Abstract
Benign M-Type HypergammaglobulinemiaWhen an M component is present in the serum of a person who has no or only minimal signs or symptoms235 the clinician is faced with the problem of deciding whether the patient will go on to develop classic multiple myeloma or macroglobulinemia, whether he has an occult malignant process with an associated M component or whether he has benign monoclonal hypergammaglobulinemia. Waldenstrorn236 has followed a large number of such patients for many years, as have others.237 , 238 In most cases it is only long-term follow-up study that provides the answer. The patients with true benign M-type hypergammaglobulinemia . . .