Abstract
An: 2015, Nr.2, Articol Nr. 32
Title: 

CHANGING OF THE ANATOMIC ENDOSCOPIC ARCHITECTURE OF THE URINARY BLADDER IN UROTHELIAL TUMOR PATHOLOGY HIGHLIGHTED BY NARROW BAND CYSTOSCOPY

Authors: 

      B. Geavlete, C. Ene, D. Georgescu, C. Bulai, P. Geavlete - ”Saint John” Emergency Clinical Hospital, Department of Urology
      I. Checherita - ”Saint John” Emergency Clinical Hospital, Department of Nephrology and Dialysis
      Magda Zaharia - ”Saint John” Emergency Clinical Hospital, Department of Internal Medicine
      CHANGING OF THE ANATOMIC ENDOSCOPIC ARCHITECTURE OF THE URINARY BLADDER IN UROTHELIAL TUMOR PATHOLOGY HIGHLIGHTED BY NARROW BAND CYSTOSCOPY (Abstract): In studies performed until now it was proved that about 80% of bladder tumors discovered as first diagnostic are in a non-infiltrative stage (pTa, pT1, CIS). White light cystoscopy (WLC) is a cornerstone in the diagnosis of bladder diseases in general and especially of tumor pathology. Narrow-band imaging (NBI) cystoscopy represents a complementary endoscopic method based on the principle of visualization in narrow band due to the white light filtration. Thus, is generated an ameliorated contrast between the normal urothelium and tumor hypervascularized tisssue, increasing the rate of detection of urothelial tumors. Comparatively with standard cystoscopy, NBI provides a clearer view of papillary tumors on the one hand, and especially of specific capillary architecture, better defining the edges of plate lession of in situ carcinoma. Studies published until now evidenced a significantly ameliorated tumor detection rate, specific to NBI visualization mode, thus confirming a substantial rate of additional tumors detected exclusively from this method. The specialty literature confirmed a certain category of patients diagnosed with non-invasive bladder cancer only using the NBI endoscopic evaluation. On the other side, this alternative was marked by a reduced specificity compared with conventional cystoscopy, manifested by an increased rate of false-positive outcomes. In conclusion, the changing of the anatomic endoscopic architecture of urinary bladder in tumor pathology was marked by a further quality after the introduction of NBI as additional routinely investigation, without suplementary costs.
Key words: ANATOMY, UROTHELIAL TUMOR, CYSTOSCOPY, NBI
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