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Urological Pathology (urological + pathology)

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Medical Sciences	100%

Selected Abstracts

The impact of the 2005 International Society of Urological Pathology (ISUP) consensus on Gleason grading in contemporary practice

HISTOPATHOLOGY, Issue 4 2009
Piotr Zareba
Aims:, To investigate the impact of the 2005 International Society of Urological Pathology (ISUP) Gleason grading consensus in contemporary practice. Methods and results:, The Gleason scores (GS) were compared in two consecutive patient cohorts with matched biopsies and prostatectomies: (i) 908 patients evaluated before the ISUP consensus (July 2000,June 2004) and (ii) 423 patients evaluated after the ISUP consensus (October 2005,June 2007). All biopsies and prostatectomies were performed and scored in one institution and were sampled and processed identically. There was a higher percentage of biopsy and prostatectomy specimens with GS , 7 after the ISUP consensus (GS , 7 on biopsy in 32% before ISUP versus 46% after ISUP; GS , 7 on prostatectomy in 53% before ISUP versus 68% after ISUP; P < 0.001). No significant difference in the complete and ±1 unit Gleason agreement was found before and after the ISUP consensus. There was a trend towards better complete agreement for GS , 7 after the ISUP consensus. Conclusions:, There was a shift towards higher GS on biopsy and prostatectomy in our practice after the ISUP consensus, although , there was no significant impact on the biopsy,prostatectomy Gleason agreement. The significance of this shift for patient management and prognosis is uncertain. [source]

Non-invasive papillary urothelial neoplasms: The 2004 WHO/ISUP classification system

PATHOLOGY INTERNATIONAL, Issue 1 2010
Hiroshi Miyamoto
The classification and grading of papillary urothelial neoplasms has been a long-standing subject of controversy. Previously, numerous diverse grading schemes for bladder tumor, including the 1973 World Health Organization (WHO) classification, existed whereby one of the major limitations was poor inter-observer reproducibility among pathologists. The WHO/International Society of Urological Pathology (ISUP) consensus classification system of urothelial neoplasms of the urinary bladder was developed in 1998 and was revised most recently in 2003 (published in 2004). Importantly, the current classification system provides detailed histological criteria for papillary urothelial lesions and allows for designation of a lesion (papillary urothelial neoplasm of low malignant potential) with a negligible risk of progression. Thus, the latest system is designed to be a universally acceptable one for bladder tumors that not only could be effectively used by pathologists, urologists, and oncologists, but also stratifies the tumors into prognostically significant categories. This article outlines the 2004 WHO/ISUP classification system regarding the specific histological criteria for non-invasive papillary urothelial neoplasms and the clinical significance of each category. [source]

Is microscopic haematuria a urological emergency?

BJU INTERNATIONAL, Issue 4 2002
M.A. Khan
Objective ,To determine the prevalence of urological pathology in a retrospective and prospective study of patients with microscopic haematuria attending a haematuria clinic. Patients and methods ,Between January 1998 and May 2001, 781 patients attended the haematuria clinic; of these, 368 (47%; median age 60 years, range 18,90) had a history of microscopic haematuria, as detected by urine dipstick testing. These patients were investigated by urine culture and cytology, renal ultrasonography, intravenous urography (IVU), flexible cystoscopy, urea and electrolyte analysis, and assay of prostate specific antigen (PSA) where appropriate. Results ,Urine cytology showed no malignant cells in any patient with a history of microscopic haematuria. In 143 patients (39%), urine cytology showed no red blood cells and all other investigations were normal. Of the remaining 225 patients, IVU showed a tumour in one (bladder), renal stones in 15 and an enlarged prostate in two. Renal ultrasonography detected no additional pathology. Urine analysis showed one urinary tract infection. Flexible cystoscopy detected five patients with a bladder tumour (all G1pTa), two urethral strictures, five bladder stones and enlarged prostates, six enlarged prostates only, and nine red patches in the bladder, showing one patient with carcinoma in situ . No PSA levels were suggestive of prostate cancer. Conclusion ,Patients with dipstick-positive haematuria should be re-assessed by urine microscopy before referral. As only 1.4% of patients had a malignant pathology (all noninvasive), microscopic haematuria should be regarded as a separate entity from macroscopic haematuria, and such patients do not need to be referred urgently. [source]