ARPC2 and neoplasm: The expression of ARPC2 was markedly higher in patients with a tumor size > 5 cm than in those with a tumor size ≤ 5 cm (P = 0.001); higher in tumors with lymph node invasion than in tumors without lymph node invasion (P = 0.004); and higher in higher-stage (stages III-IV) tumors than in lower-stage (stages I-II) tumors (P = 0.001).