A new case of IgE myeloma (Des) ending with renal failure.

A new case of IgE myeloma (Des), a woman aged 55, is presented. The monoclonal Ig was identified as an IgE of the kappa type. The case history is detailed. Bone lesions were absent; there were up to 12% plasma cells in the peripheral blood; therapy with cytostatic drugs could not be applied because of leuco- and thrombopenia. The patient died of renal failure after having been maintained one year on steroids and transfusions. A comparison between several clinical and laboratory data of this new case, the twelfth to the author's knowledge, and those of the preceding ones, is also given.