Purpose To explore the practical significance of TERC gene amplification by fluorescence in situ hybridization( FISH) on the differential diagnosis of cervical intraepithelial neoplasias 1 and 2 by tissue microarray.Methods A total of 42 cases of cervical tissue samples were selected,including 20 cases of normal cervix,22 cases of cervical intraepithelial neoplasia( CIN) 1 /2( 8 cases of CIN1 and 14 CIN2).Homemade tissue microarray was prepared.TERC gene amplification was detected with FISH method.Results T...