ALB and neoplasm: A fast tumor accumulation was observed for 177Lu-Alb-L2, which reached 17.45 ± 6.51%ID/g at 2 h post-injection and displayed higher uptake, 26.41 ± 6.73%ID/g at 24 h and 22.00 ± 4.71%ID/g at 48 h, respectively.