title: [Histoprognostic factors of non-infiltrating urothelial tumors of the bladder].
abstract: The authors reported a pathology and clinical study about 215 cases of non infiltrating transitional cell carcinoma of the bladder. During the successive treatments of these lesions 475 specimens were collected. 5 tumours characteristics were analyzed: size of the tumour, multiplicity, microscopic structure, grade, mitotic index. The average time of supervision was 39,6 months. 75% of the patients presented a tumour recurrence over the 5 years period and in 3% of the cases deaths were directly attributable to the tumour. Multiplicity and especially mitotic index are the only tumour characteristics which correlated well with the likelihood of new tumour occurrence. The grade and the mitotic index are the best criteria to assess the risk of recurrence as an infiltrating carcinoma. The distribution of tumour characteristics shows that this type of lesion roughly keeps the same pathological pattern during recurrences. Nevertheless there exists a cellular dedifferentiation trend as well as an increase of mitotic index.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000401:mortality* / Q000473:pathology; D004848:Epithelium / Q000473:pathology; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D001749:Urinary Bladder Neoplasms / Q000401:mortality* / Q000473:pathology
vernacular_title: Facteurs d'histopronostic des tumeurs urothéliales non infiltrantes de la vessie.