PET tracer identifies which liposarcoma tumors may respond to chemotherapy

January 9, 2013

Researchers have identified a group of liposarcoma tumors that can be imaged by positron emission tomography (PET) scans using a tracer substance known as FAC. In addition, these tumors were found to be sensitive to chemotherapy.

Liposarcoma, the most common type of sarcoma, is an often lethal form of cancer that develops in fat cells. High mortality is due in part because the tumors are not consistently visible with PET scans using the common FDG probe and that the tumors frequently do not respond to chemotherapy.