[3-Hydroxyanthranilic acid in the blood of patients with kidney tumors].

: Antigen containing the tryptophan metabolite -- 3-oxyanthranilic acid-(3-OAA-antigen) was determined by agarose precipitation method, using specific immune rabbit sera in 85 patients, admitted with the primary diagnosis of renal tumor. Among 85 patients 3-OAA-antigen was found in blood sera in 62 patients. Among 23 patients in whom 3-OAA-antigen was not revealed in 20 -- the diagnosis of renal tumor failed to be supported. The authors conclude, that it is possible to use the reaction of 3-OAA-antigen detection for establishing the diagnosis of tumors of the kidneys.