[Intra vesical explosion during an endoscopic resection of a vesical tumor]

The intra vesical combustion of hydrogen and oxygen, form one mixture of explosive gas. Intra vesicale explosion during trans urethral resection is one rare incident. Its most dangerous manifestation during is vesical rupture. We demonstrate one case of intra vesical explosion during one endoscopic resection of one in the anterior face tumor of bladder. Damages on bladder are small. By going back to literature, we try to discuss the origin of intra vesical hydrogen and oxygen as well as the different preventive measures.