Applicator for use of cesium-137 miniaturized tube sources in the treatment of uterine cervix cancer.

A modified afterloading Kumar Cervical Applicator with a 3 mm diameter central tandem permits insertion of the afterloading tandem into the uterus without need of manual cervical dilatation. While general anesthesia is required for insertion of standard cervical applicators, this is eliminated because the central tandem is no larger than a uterine sound, and the tandem may be painlessly inserted into the uterus while the patient is awake.