The aim of the study is to test the feasibility \& loco-regional control rate by combining high precision SBRT with chemotherapy in stage III NSCLC in tumor/lymph nodes if tumors/lymph node size with ≤ 6cms in size.
Aged 18 or above and less than 75 years.
Histologically proven non-small cell lung cancer.
Stage T1-4, N1-3, M0 with maximum tumor size less than 6 cms and ≤ 3 stations of largest lymph node size less than 4 cms.
ECOG status 0-1.
Metastatic disease.
Tumor size > 6cm.
Involved Lymph node size greater than 4 cms & more than 3 station of lymph nodes involved.
Patients with superior vena cava obstruction.