TSGF and carcinoembryonic antigen (CEA) in serum and healthy as well as unhealthy side BALF were measured in 40 patients with peripheral SPN, and 40 benign patients as controls.

• 方法对40例周围型SPN患者行血清和健患双侧支气管肺泡灌洗液TSGF、CEA检测并与40例良性病变进行对照。