Radiologic Findings of Metastatic Malignant Melanoma of the Breast: Mammographic, Sonographic, Dynamic Contrast-Enhanced Breast MRI, and 18F-FDG PET-CT Features

Abstract

Metastatic involvement of the breast from an extra-mammary tumor is rare. However, when a patient with a known primary malignancy complains of a palpable breast mass, both the primary breast cancer and the metastatic lesion must be considered as a differential diagnosis. Melanoma is one of the tumors that commonly metastasizes to the breast, but the characteristic imaging features are not well known. Therefore, an understanding of the characteristic image findings for melanoma would be advantageous in differentiating a breast mass in patients with a history of melanoma.