[Prognostic value of serum and tissue CEA evaluation in lung cancer].

Serum concentration of carcinoembryonic antigen (CEA) was determined in 53 lung cancer patients before and 1 month after surgery. Relationships between serum CEA levels after and before surgery and survival were carried out. Furthermore, histological sections of the neoplastic surgical material were stained with anti human CEA antibody using an immunohistochemical method. The positivity of the neoplastic cells and of the macrophages were then analyzed and discussed.