Early stage of squamous lung cancer has stage 1A or stage 1C, and there is no stage 1AC. Patients with stage 1A generally do not need chemotherapy after operation, but patients with stage 1C need chemotherapy after operation.
Early stage squamous lung cancer is generally divided into three sub-stages, 1A, 1B and 1C, according to different tumor sizes, in which patients with stage 1A and 1B can be cured by radical surgery, and the incidence of recurrence and metastasis after surgery is very low, so they do not need to be given postoperative adjuvant chemotherapy.
Stage 1C squamous lung cancer patients have tumors with a maximum diameter of more than 2 centimeters, and some of them have lymph node metastasis, then there is a risk of postoperative recurrence and metastasis of the lesion, so these patients need to be given postoperative chemotherapy to reduce the incidence rate and improve the cure rate of stage 1C early squamous lung cancer.