This calculator strictly interprets the guidelines. Local policy should be considered, especially regarding use of PETCT, biopsy and resection in solid and part solid lesions.

†High risk:

Only for solid nodules and any of the below:
Smoker
Ex-smoker*
Exposure to asbestos
Exposure to uranium
Exposure to radon
Age > 40 years*
History of lung cancer in a first degree relatives
*inferred

‡Multiple nodules only relevant for sub-solid nodules.

†† If there is a solid component to a part solid nodule, this should be measured.

References

1. MacMahon, H. et al. Guidelines for Management of Small Pulmonary Nodules Detected on CT Scans: A Statement from the Fleischner Society. Radiology 237, 395–400 (2005).
2. Recommendations for the management of subsolid pulmonary nodules detected at CT: A Statement from the Fleischner Society. Naidich DP, Bankier AA, MacMahon H, Schaefer-Prokop CM, Pistolesi M, Goo JM, Macchiarini P, Crapo JD, Herold CJ, Austin JH, Travis WD. 2013 Jan;266(1):304-17.