GH1 and hepatocellular carcinoma: In ACC, after irradiation, SUV values decreased 42.94% in the IR group versus 50.91% in the GH_IR group; in HCC, FDG uptake clearly decreased after radiotherapy in the animals treated either with or without GH, and SUV values decreased 34.20% in the IR group versus 55.71% in the GH_IR group.