Invasive Micropapillary Carcinoma of the Breast: Mammographic, Sonographic, and MRI Features

Abstract

The purpose of this study was to describe the clinical, imaging, and histopathologic findings of invasive micropapillary carcinoma of the breast. The imaging characteristics of invasive micropapillary carcinoma are highly suggestive of malignancy. The lesion is a high-density irregular mass with indistinct margins associated with microcalcifications on mammograms; a solid irregular hypoechoic mass with indistinct margins and frequent axillary nodal involvement on sonograms; and a multifocal mass on MR images. This tumor may necessitate aggressive management.