ERBB2 and neoplasm: Univariate analysis showed significant differences in the size of EGC lesions (p = 0.012), presence or absence of ulceration (p = 0.002), depth of invasion (p < 0.001), tumor location (p < 0.001), histological subtype (p < 0.001), and lymphovascular invasion (p < 0.001) between the two groups with different HER2 statuses.