Recurrent Primary Pleomorphic Liposarcoma of the Breast: A Case Report with Imaging Findings.

Primary pleomorphic liposarcoma of the breast is rare, and only a few cases in the literature have reported imaging findings. Herein, we report a rare case of primary pleomorphic liposarcoma of the breast in a 38-year-old woman and describe the imaging findings including mammography, ultrasonography, computed tomography, magnetic resonance imaging, and 18F-Fluorodeoxyglucose-positron emission tomography. Although most fat-containing breast masses are benign, malignancy can occur. Magnetic resonance imaging can be helpful for further evaluation of breast masses.