The mean cytoplasmic YAP1 immunoreactivity score in residual cancer cells in the CHT group was significantly higher than that in the NNA (4.71 ± 0.20 vs. 2.57 ± 0.26, respectively, p < 0.001) and NHT groups (4.71 ± 0.20 vs. 2.90 ± 0.32, respectively, p < 0.001). Here, YAP1 is linked to cancer.