Assessing the Risk That a Lump in the Lung Is Cancer
The risk that a new lump in the lung is cancer increases with age.
| Age | Risk |
|---|---|
| 35 | 15% |
| 50 | 40% |
| 70 | 70% |
| 80 | >90% |
The larger the lump, the more likely it is cancer.
| Size | Risk |
|---|---|
| 1 inch (2 cm) or less | 40% |
| More 1-1/2 inches (3 cm) | 90% |
The more that a patient smokes, more likely cancer will occur.
| Packs per day | Risk over normal |
|---|---|
| 1 | 20 times |
| 2 | 70 times |