Considering the extremely high positive rate of ROR1 expression observed in this study, with the mean scored of 1.98 of all lung ADC tissue samples according to the 0–3 scoring system used in this study, we divided the lung ADC patients into two groups as follows: score ≤2 into the ROR1 low expression group and score >2 into the ROR1 high expression group. This evidence concerns the gene ROR1 and AIDS dementia complex.