Ga-67-positive and F-18 FDG-negative imaging in well-differentiated hepatocellular carcinoma.

摘要: Hepatocellular carcinomas (HCC) are the fifth most common cancer and rapidly fatal in almost all cases, with survival generally less than 1 year from diagnosis. F-18 FDG accumulates tissues where glucose metabolism is enhanced. As HCC differentation varies, well-differentiated low tumor grades show activity on PET. Conversely, Ga-67 scintigraphy may be positive such as inflammatory process usually important HCC. The combination of imaging negative should indicate or low-grade