Cryotherapy in bladder tumours.

Four bladder cancers were treated by cryo-tumorectomy under impedance-metry. In 3 very advanced cases, the result was favourable for several months, without any local recurrence, but there was generalization of the cancer. In the 4 th case, the excellent result has been maintained for 3 1/2 years, with a normal life-style, but the treatment was completed with gamma therapy. This technique is proposed as an exceptional measure in very fragile patients as an alternative to cystectomy. In the absence of any proven cryo-immunological effect, complementary gamma therapy is recommended.