[Uroproteins in lymphoproliferative diseases].

Uroproteins were studied in 86 cases of chronic lymphatic leukaemia, 28 of chronic lymphoreticulosis and 24 of Hodgkin disease, using polyacrylamide gel disk-electrophoresis. Proteinuria was found in 63 to 79% of the patients in all three groups. The amount of protein rarely exceeded 0.1g/litre. Disproteinuria was observed in the majority of patients. Urinary components which were present in 36% of cases with chronic lympholeucosis and in 25% of them with chronic lymphoreticulosis were identified as immunoglobulin light chains; the kappa type predominated. Of the 24 cases of Hodgkin disease, urinary M components were found in two patients only.