[Localization of primary and recurrent bladder tumors]

The location distribution of the primary and recurrent bladder tumours was studied in 417 patients. The authors decided that the ureteral orifices, the lateral walls are the most common places of primary superficial bladder tumours. The favoured places of the primary invasive bladder tumours are the posterior walls. They found not so much disparity between the site of primary and recurrent invasive bladder tumours, but the difference between the site of the primary and recurrent superficial bladder tumours is remarkable. They decided, according to their patients material, that the recurrent superficial bladder tumours take places more frequently on the posterior walls, the dome and the anterior walls. The explanation of this phenomenon may be the tumour cells implantation during the TUR. The authors survived all the other processes can yield the local and distant recurrent bladder tumours and understanding of this processes can result in a better understanding of the location distribution of the recurrent bladder tumours on the one hand and it can help us to avoid or decrease the recurrences on the other hand.