Abstract
Serum tumor markers (CEA, CA19-9, SCC, NSE) were measured in 64 patients with lung cancer and 34 patients with pulmonary tuberculosis. The serum CEA levels tended to be higher in adenocarcinoma, SCC in squamous cell carcinoma, NSE in small cell carcinoma, whereas CA19-9 levels were increased with the advancement of clinical stages. In pulmonary tuberculosis, serum levels of these tumor markers were within normal limits or slightly elevated in most cases except 3 cases with very high levels in SCC and NSE. These cases should be examined more completely and followed for a longer time. In lung cancer, measurement of CEA, CA19-9, SCC, and NSE is considered to be useful in the diagnosis and classification of histological types.
