Figure 2

Patients with stage 1 in TNM staging system in the TCGA STAD dataset. We arranged The Cancer Genome Atlas Stomach Adenocarcinoma (TCGA STAD) patient samples that were stage I by T1 tumour stage in the TNM staging system and with available ERBB2 expression levels. Eleven samples were available and their differentiated statuses were accessed from pathology reports. The ERBB2 expression level of the poorly differentiated sample, TCGA-HU-A4G6-01, was only slightly higher than the ERBB2 mean value of whole tumour samples (coloured as red in the ERBB2 column), and its lymph nodes stage was N0. The ERBB2 expression of the TCGA-KB-A6F7-01 sample, which was poorly differentiated, was lower than the mean value (coloured as blue in the ERBB2 column), and its lymph nodes stage was N1 (coloured as red in the N column). #N/A indicates not available. D, differentiated adenocarcinoma; H, high; HER2, Human epidermal growth factor receptor 2; L, low; MD, moderately differentiated cancer; PA, papillary adenocarcinoma; PD, poorly differentiated cancer; UD, undifferentiated adenocarcinoma.