Recurrent bladder papillomata treated with bacillus Calmette-Guérin: a preliminary report (phase I trial).

Six patients with recurrent bladder papillomata were treated both by abdominal scarification with bacillus Calmette-Guérin (BCG) and by intravesical BCG, without resection. Four patients responded favorably (two showing major systemic complications), and the other two, who failed to respond, underwent further surgery.