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  • 1
    ISSN: 1432-1335
    Keywords: Transitional cell ; Bladder tumour ; Nuclear image analysis ; Mitotic index ; WHO grade ; Papillary status ; Clinical stage ; Progression ; Survival
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A retrospective histological analysis has been carried out on 537 cases of transitional-cell bladder carcinoma, followed-up over a period of 9 years. In the first part of the study WHO grade 2 tumours were analysed and a number of independent factors predictive for survival identified. In a multivariate analysis the T category and M/V index (number of mitotic figures/mm2 neoplastic epithelium) were the most important prognostic factors. In a subsequent analysis of the whole series of 537 cases, overall the M/V index was not as important in predicting survival as the stage of the tumour. However, in superficial tumours (Ta−T1) subsequent analysis showed that the M/V index alone could be used to predict survival.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1335
    Keywords: Bladder cancer ; Cell adhesion molecule ; E-cadherin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A series of 161 bladder cancer biopsy specimens (survival data available in 122 cases) was analysed immunohistochemically for the expression of E-cadherin (E-CD), the most important cell-to-cell adhesion molecule in epithelial cells. Altogether, 81% of the tumours were E-CD-positive, the staining being heterogeneous in nearly all tumours. Normal transitional epithelium was positive for E-CD while in carcinomas the expression was reduced or even absent (18%). Lower levels of E-CD were detected in rapidly proliferating high-grade muscle-invasive tumours. Reduced expression of E-CD was related to a dense inflammatory cell reaction in tumour stroma. The median clinical follow-up was 12.0 years. Short recurrence-free survival of Ta-T1 tumours (P=0.02) was related to expression of E-CD fewer than 50% of cancer cells. In survival analysis the fraction of E-CD-positive cells (P=0.1) and the expression intensity of E-CD (P=0.09) showed a non-significant association to prognosis. Multivariate survival analysis indicated that expression of E-CD has no independent prognostic value over grade or stage while recurrence-free survival was related to E-CD expression.
    Type of Medium: Electronic Resource
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