[18F]FDG PET imaging was performed in non-cachectic MEF H-Ras V12 (MEF) versus cachectic MEF H-Ras V12 tumour-bearing NOD scid gamma (NSG) mice expressing human Fn14 (MEF H-Ras V12 hFn14 (MEF Fn14)). Here, TNFRSF12A is linked to neoplasm.