IRM du sein dans le carcinome lobulaire infiltrant : aspects diagnostiques, bilan préthérapeutique, évaluation sous hormono- ou chimio-néo-adjuvante

Invasive lobular carcinoma (ILC) is the second most common malign breast neoplasia, accounts for 5-15% of breast cancers. The tendency of ILC to have atypical imaging and clinical appearances is related to its histopathologic features. Therefore, its clinical and radiological detection is challenging. In comparison to other types of breast cancer, ILC is more likely to be associated with multifocal and contralateral breast involvement as well as a tendency to a diffuse infiltrative growth pattern. The use of MR imaging increases sensitivity in the detection of ILC and provides useful information for further management and presurgical planning. Familiarity with the spectrum of imaging appearances of ILC is essential.