[Occurrence of beta2-microglobulin in normal and carcinomatous renal tissue (author's transl)].

Fifty renal tissues and renal tumours are examined and the occurrence of beta2-microglobulin (beta2m) are measured. It is found especially in the solubilized fraction of the tissue. The renal tumours contain four time more beta-2m but they are to be divised into two populations in accordance to their microscopic and macroscopic aspects. This explains why only a part of the patients with renal tumours has an elevated blood beta2m.