What a lung nodule means and how often it signals cancer

Pope Leo, 71, is scheduled for surgery to remove a lung nodule found during a routine checkup. Lung nodules are common small growths in lung tissue, usually detected incidentally on chest X-rays or CT scans, and most are benign. The article explains that risk depends on factors such as age, smoking history, family history, asbestos exposure, and nodule characteristics.

"Lung nodules are growths in lung tissue no larger than 3 centimeters; bigger ones are masses. They are often found incidentally on chest X-rays or CT scans. In a Dutch study of nonsmokers, about 38% of women and 48% of men had at least one. U.S. chest CT scans detect them in roughly 31%, and screening may find them in up to half of people." Count: Lung1 nodules2 are3 growths4 in5 lung6 tissue7 no8 larger9 than10 3? 11 centimeters12 bigger13 ones14 are15 masses16. They17 are18 often19 found20 incidentally21 on22 chest23 X-rays24 or25 CT26 scans27. In28 a29 Dutch30 study31 of32 nonsmokers33 about34 38%35 of36 women37 and38 48%39 of40 men41 had42 at43 least44 one45. U.S.46 chest47 CT48 scans49 detect50 them51 in52 roughly53 31%54 and55 screening56 may57 find58 them59 in60 up61 to62 half63 of64 people65. 65.

Second: "Most are benign—about 95%—while only 3.7% to 5.5% signal early lung cancer. Risk depends on nodule size, density, location, age, smoking, family history, and prior imaging changes. Removal may be considered if symptoms occur, growth is rapid, or cancer risk is high. Surgery may be open or less invasive, sometimes using cameras or robotic tools." Count: Most1 are2 benign3 about4 95%5 while6 only7 3.7%8 to9 5.5%10 signal11 early12 lung13 cancer14. Risk15 depends16 on17 nodule18 size19 density20 location21 age22 smoking23 family24 history25 and26 prior27 imaging28 changes29. Removal30 may31 be32 considered33 if34 symptoms35 occur36 growth37 is38 rapid39 or40 cancer41