[Estrogen receptor in female lung carcinoma]

80 cases of female lung carcinoma were assayed with avidin-biotin complex method for estrogen receptor (ER) and 73.8% cases revealed positive reaction. The 3 expressive types were cytoplasmic, all cellular and nuclear. There were no correlations between ER content and age, blood type, histologic types, size of tumor and metastasis of regional lymph nodes, but obvious correlations between ER content and prognosis. The 5 year survival rate in ER negative patients (72.7%) was greatly higher than in positive patients (8.8%) (P < 0.01). All had better prognosis in ER negative patients above and below 50-year groups.