[Ex juvantibus therapy in the differential diagnosis of urogenital tuberculosis].

To make a differential diagnosis, 274 patients were followed up. Of them 68 patients were further found to have urinary tuberculosis that was verified by hypodermic tuberculin test, 15 patients underwent tuberculin diagnosis without special preparation, and 20 required type 1 ex juvantibus therapy. Challenge treatment with low-spectrum antituberculous agents in usual doses for 2 months confirmed the diagnosis in 3 patients and excluded it in other 3.