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Outlook

Most SPNs are benign, but they may represent an early stage of lung cancer.
 
Lung cancer survival rates remain dismally low at 14% at 5 years. However, early lung cancer (ie, lung cancer that is diagnosed when the primary tumor is smaller than 3 cm in diameter [stage 1A]), can be associated with a 5-year survival rate of 70-80%.
 
Accordingly, the only chance for cure of early lung cancer that presents as SPN is prompt diagnosis and treatment.