Objective To investigate the relationship of expression of extracellular matrix metalloproteinase inducer (EMMPRIN) with lymphoid metastasis and prognosis in non-small-cell lung carcinoma(NSCLC). Methods Expression of EMMPRIN in 77 cases of patients with NSCLC was immunohistochemically detected. The relationship among the expression of EMMPRIN, smoking index number, tumor T stages, N stages, histological type, differentiation, lymphoid metastasis, the cycles of adjuvant chemotherapy and prognosis was analyz...