[Treatment of carcinoma in situ of the urinary bladder with BCG].

In a prospective study 55 patients with primary or secondary carcinoma in situ of the bladder were treated with BCG. With an overall response rate of 85%, results reported by other authors can be confirmed. In relationship with the effectiveness of the treatment, the side-effects can be considered as acceptable. Therapy failure suggests extravesical or invasive carcinoma.