Fig. 1.
Axial non-contrast CTs at the level of L4 in two men with thigh liposarcoma treated with pre-operative radiation therapy followed by surgical resection. (A) 76 year-old man who developed tumor recurrence demonstrates increased adipose tissue attenuation (−76 HU) and low psoas muscle attenuation (33 HU) compared to (B) 72 year-old year old man who did not developed tumor recurrence and who had lower CT attenuation of adipose tissue (−103 HU) and higher psoas muscle attenuation (52 HU). Images are presented using the same window and level.