ERBB2 and neoplasm: The mean age was 65.72 ± 10.08 years for HER2-patients and 67.75 ± 10.25 years for HER2+ patients (p = 0.151), while the mean tumor size was 3.12 ± 1.92 cm for HER2-patients and 2.75 ± 1.53 cm for HER2+ patients (p = 0.103).