Possibilities of Diffusion-Weighted MRI in Clarification of the Degree of Malignance of Recurrent Retroperitoneal Liposarcomas

Purpose: The aim of our study was to the possibilities DW-MRI in differential diagnosis recurrent retroperitoneal highly differentiated and dedifferentiated liposarcomas (WLS DLS respectively). Material methods: is based on data a retrospective 36 patients who underwent surgery for (n = 27) 9). All received MRI abdominal cavity pelvis without intravenous contrast enhancement with further assessment size, shape, contours structure. When analyzing ADC maps, small soft tissue nodes were evaluated. Results: Morphological studies performed all patients. results qualitative analysis showed statistically significant differences WLS recurrences from DPS presence septa pseudocapsule ( p 0.0032 0.0028, demonstrated values solid component tumors DLS: median group higher (1960×10 –6 mm 2 /s) than (1031×10 /s). sensitivity this sign 87.5 %, specificity 70 %.