ERBB2 and neoplasm: Table 2 shows the data distribution of TLCN. Table 3 shows the data distribution of WHSPN. These HER2 stained slides were obtained by UNIC PRECICE 600 scanning instrument at 40× optical magnification (0.12 μm/pixel). HER2 scoring criteria were based on Li et al. (2016), and the tumor tissues of selected cases were IHC stained for HER2 protein expression status assessment. Table 1 shows the assessment criteria.