Lung nodule grew from 6mm to 7mm in 5 months. radiologist said follow fleschman and gp said rescan in 18 months. is 1mm growth not a big concern?

Mgt: Information about the appearance of the nodule, location, and your individual risk factors such as smoking, would be helpful. I would suggest a visit to your pulmonary specialist to review the scan, possible PET scan and their rationale.

Many factors: 6 to 7mm within diagnostic error. <1 cm overall a much better diagnosis: lots and lots of nodules are seen <1cm. 18 months is too long IF you are a smoker (plus: if you are a smoker---stop now) At 49 yo, non-smoker: ok to check in 18 months with a benign lesion at 7mm.