Autologous fat transplantation was initially performed by plastic surgeons for improving facial and body contour depressions and scars. There has been long-standing interest in breast augmentation for cosmetic purposes and for the filling of defects from partial breast resection for breast cancer. In the 1980s, autologous fat transplantation for breast augmentation and symmetry gained popularity. We present two cases of autologous fat transplantation into the breast parenchyma that demonstrate the long-term clinical and radiologic results of this approach and to illustrate the potential caveats regarding breast cancer diagnosis in these patients. We also review the existing literature on the subject as it relates to long-term effects and complications.
Fortunately, primary tumors of the heart and great vessels are rare. These primary tumors include angiosarcoma, malignant fibrous histiocytoma, high-grade and pleomorphic sarcoma, and paraganglioma with pericardial and myocardial invasion. Symptoms are often nonspecific and include chest pain and dyspnea. Although these tumors are often diagnosed with echocardiography and computed tomography, magnetic resonance (MR) imaging currently appears to be the imaging modality of choice because of its diverse capabilities, which include multiplanar imaging for excellent anatomic definition of the heart, pericardium, mediastinum, and lungs; improved morphologic differentiation between tumor tissue and surrounding cardiovascular, mediastinal, or pulmonary tissues; dynamic imaging with a gated cine-loop acquisition; and assessment of tissue perfusion. The use of gadopentetate dimeglumine is helpful in achieving tumor enhancement on MR images but is not required. MR imaging is also useful in assessing tumor response to surgery, radiation therapy, and chemotherapy.
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