Résumé
La métaplasie cylindrique atypique (MCA) est une lésion fréquemment retrouvée dans des macrobiopsies réalisées sur foyers de microcalcifications le plus souvent de type ACR3 et ACR4. Elle a été décrite avec des terminologies différentes au cours des 30 dernières années, dont les plus connues sont : lobules atypiques de type A, carcinome intracanalaire de type crampon monomorphe, atypies épithéliales planes, métaplasie et hyperplasie cylindrique avec atypies [1]. Cette lésion est fréquemment associée à d’autres proliférations intraépithéliales néoplasiques de bas grade mais aussi à des carcinomes infiltrants de phénotype luminal. Elle pose le problème de la conduite à tenir en cas de découverte isolée sur macrobiopsie de foyers de microcalcifications.
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MacGrogan, G., de Mascarel, I. (2012). Pour une meilleure évaluation des risques en cas de métaplasie cylindrique atypique en pathologie mammaire. In: Cancer du sein : surdiagnostic, surtraitement. Springer, Paris. https://doi.org/10.1007/978-2-8178-0249-7_9
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DOI: https://doi.org/10.1007/978-2-8178-0249-7_9
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