Objective: Mucinous breast carcinoma is an uncommon histologic type of invasive breast carcinoma that can be differentiated in pure and mixed forms, which have different prognosis and treatment.
Conclusion: MRI features of both types of mucinous breast carcinomas are discussed, illustrated, and compared with pathologic findings and with other imaging methods, including mammography, ultrasound, and PET/CT.
Keywords: MRI; breast neoplasms; mucinous neoplasms.