ERBB2 and metastasis: However, ARHGAP10 expression was not significantly correlated with age (p = 0.287), tumor size (p = 0.217), ER status (p = 0.366), PR status (p = 0.245), HER2 (p = 0.167), pathological grade (p = 0.379) and lymph node metastasis (p = 0.209).