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- W2009997191 abstract "(1) vérifier si en cytologie urinaire, les atypies nucléaires portant sur des cellules urothéliales profondes peu nombreuses ont une signification diagnostique ou pronostique et (2) évaluer si la dénomination « cellules urothéliales atypiques de signification indéterminée » (AUC-US) ou « ne pouvant exclure un haut grade » (AUC-H) pourrait permettre de standardiser les conclusions. Les cellules urothéliales atypiques (AUC) sont définies comme des cellules profondes avec atypies (rapport N/C élevé, excentration, hyperchromatisme et/ou anomalies des contours nucléaires) insuffisantes pour affirmer le haut grade. Nous avons étudié 435 cytologies provenant de 126 patients avec AUC suivis de 1999 à 2009. Chaque cas a été comparé à l’histologie de contrôle et confronté à l’évolution à long terme. On notait 183 AUC pour l’ensemble de la série. Les AUC étaient associées à des histologies négatives, bénignes ou de bas grade dans 36 cas sur 106 (33,9 %) vus dans les six mois, mais dans 70 cas (66 %) on notait un haut grade concomitant. Par ailleurs, les AUC précédaient dans 66 cas (36,1 % des AUC) un haut grade dans un délai moyen de 10,5 ± 12 mois. Au total, les AUC étaient associées à des lésions de haut grade ou prédictives dans 135 cas (73,8 %). Les AUC ont une signification diagnostique et pronostique. La subdivision en AUC-US et AUC-H permettrait, parallèlement au système de Bethesda des lésions cervicovaginales, de standardiser les conclusions de cytologie urinaire et d’apprécier le risque évolutif des atypies urothéliales. To investigate (1) whether sparse nuclear atypias involving deep urothelial cells have a diagnostic or prognostic value in urinary cytology, and (2) whether the terms atypical urothelial cells “of undetermined significance” (AUC-US) or “cannot exclude high grade” (AUC-H) might be used to standardize urinary cytology reports. Atypical urothelial cells (AUC) were defined as deep cells with nuclear abnormalities (increased N/C ratio, eccentric nucleus, hyperchromatism and/or irregular shape) in small number not allowing their categorization as malignant, high grade. We studied 435 urinary samples from 126 patients with AUC at any step of their clinical history, followed up over a 10-year period (1999-2009). Every case was compared with histopathology within 6 months and to long term follow-up including cystoscopy and histopathology combined. A total of 183 AUC was recorded. AUC were associated with negative, benign or low grade histological results in 36 of 106 cases (33.9 %) within 6 months, but a high grade was simultaneously documented in 70 cases (66 %). AUC preceded high-grade lesions in 66 cases (36.1 % of all AUC) in a mean interval of 10.5 ± 12.0 months. Overall, AUC were associated with or predictive of high-grade lesions in 135 cases (73.8 %). AUC have a diagnostic and prognostic value. Applying the terms AUC-US and AUC-H to urinary cytopathology reports would allow, as for the Bethesda system for cervical or vaginal cytologic diagnoses, better appreciation of the risk of progression to high grade tumours in cases with atypias." @default.
- W2009997191 created "2016-06-24" @default.
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- W2009997191 date "2011-02-01" @default.
- W2009997191 modified "2023-09-30" @default.
- W2009997191 title "Cellules urothéliales atypiques (AUC) : une formulation inspirée du système de Bethesda applicable à la cytologie urinaire" @default.
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- W2009997191 doi "https://doi.org/10.1016/j.annpat.2010.09.010" @default.
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