Background: We sought to explain if any relationship exists between the size and Fluorodeoxyglucose  [FDG]  uptake of primary tumour in non–small–cell lung carcinoma [NSCLC]

Methods:35 patients  with histologically proven non–small cell lung carcinoma who underwent staging  Fluorodeoxyglucose– positron emission tomography/computed tomography  [FDG–PET/CT]  were retrospectively evaluated. Statistically compared the size and the FDG uptake of the primary tumour

Results: Poor relationship exists between the size and the FDG uptake of the primary tumour in non–small cell lung carcinoma