PET/CT Imaging as a Diagnostic Tool in Distinguishing Well-Differentiated versus Dedifferentiated Liposarcoma

Figure 3

CT (a) versus PET (b) from a patient where the initial biopsy, done prior to the PET directed at the mass adjacent to the pancreas, showed WDLPS. The PET clearly shows only a small area within this mass to have FDG activity. Repeat biopsy from the FDG avid right perinephric mass demonstrated cellular nonlipogenic component with pleomorphic and atypical spindle cells and mitoses consistent with DDLPS (c).

(a)

(b)

(c)