Mammographie - echographie et la classification birads dans la pathologie mammaire

2010 
Objectifs : Le but de l’etude est de repertorier les pathologies frequemment rencontrees clasees en BIRADS avec une correlation histologique et de determiner la sensibilite, la specificite et les valeurs diagnostiques de l’echo-mammographie. Methode d’etude : Il s’est agit d’une etude retrospective portant sur 464 cas d’examens echomammographiques realises sur une periode d’un an dans les services de radiologie des centres prives et publiques de Lome. Resultats : Les nodules et les mastodynies representaient les principaux symptomes avec des frequences respectives de 31,46% et 29,31%. Les lesions malignes representaient 19,78% des cas, dominees par le carcinome canalaire infiltrant. Les lesions benignes etaient dominees par le fibroadenome qui representait 29,5% des cas. La mammographie avait une sensibilite de 77,78% et une specificite de 66,67%. Ses valeurs predictives positive et negative etaient respectivement de 46,67% et 88,89%. L’echographie avait une sensibilite de 77,78% et une specificite de 75%. La valeur predictive positive etait de 53,85% alors que la valeur predictive negative etait de 90%. Conclusion : Le couple mammographie-echographie constitue l’examen de base dans la demarche diagnostique de la pathologie mammaire, mais associee a l’examen clinique et a la une preuve cytohistologique. Mots cles : Mammographie, Echographie, pathologie du sein Objective: The objective of the survey is to list the pathologies frequently class in BIRADS with a histological interrelationship and to determine the sensitivity and the specificity of the echo - mammography. Method of survey: It is about of a retrospective study on 464 cases of exams ultrasound and mammography realized during one year in the services of radiology of the private and public hospital of Lome. Results: The nods and the brest paintful represented the main symptoms with respective frequencies of 31.46% and 29.31%. The shrewd lesions represented 19.78% of the cases, dominated by the infiltrating duct carcinoma. The benign lesions were dominated by the fibroadenoma that represented 29.5% of the cases. The mammography had a sensitivity of 77.78% and a specificity of 66.67%. Its predictives positive and negative values were respectively 46.67% and 88.89%. The ultrasonography had a sensitivity of 77.78% and a specificity of 75%. The predictive positive value is of 3.85%  whereas the predictive negative value is of 90%. Conclusion: The mammography and ultrasound is the basis exam in the diagnostic of the mammary pathology, but associated with cytohistological exam. Keywords: Mammography, ultrasonography, pathology of the breast.
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