Tom Potti MD, Presenter: Nothing to Disclose

David Andrew Pacholke MD, Abstract Co-Author: Nothing to Disclose

Proper characterization of a fat-containing mass on MRI requires careful evaluation of lesion complexity on T1 weighted imaging Lipomas are the most commonly encountered mesenchymal tumors Lipomas typically consist of encapsulated homogenous fat, similar to adjacent subcutaneous fat Some lipomas demonstrates few, thin septations and other nonlipomatous elements Lipoma variants and fat necrosis can resemble well-differentiated liposarcomas on MRI Well-differentiated liposarcomas often demonstrate thickened (greater than 2 millimeters), irregular, enhancing septations and nonlipomatous globular and/or nodular areas A focal, nonlipomatous mass seen within or adjacent to a well-differentiated liposarcoma suggests a dedifferentiated liposarcoma  

Disclosure Introduction Benign Lipomatous Tumors Lipoma Lipoma Variants Lipomatous Tumors Infiltrating Lipoma Hibernoma Malignant Lipomatous Tumors Well-Differentiated Liposarcoma Dedifferentiated Liposarcoma Myxoid Liposarcoma Pleomorphic Liposarcoma Conclusion References

http://abstract.rsna.org/uploads/2014/14005225/14005225_seoj.pdf

Potti, T, Pacholke, D, Spectrum of Fat-Containing Soft Tissue Masses on MRI: The Common, the Characteristic, and the (Sometimes) Confusing.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14005225.html