A large retrospective study of 1,693 lung cancer patients has identified critical risk factors for fast-growing tumors detected on chest CT scans. Fast-growing cancers, defined by a doubling time under 400 days, occurred in 18% of cases-rising to 41% in solid nodules versus 9.4% in subsolid lesions.
Solid tumor density, male sex, smoking history, and personal or family cancer history were independently linked to rapid progression. Smoking emerged as the sole significant predictor in subsolid tumors, reinforcing its central role in aggressive biology.
Among 128 patients with genomic data, TP53 gene mutations were found in 18% and independently associated with accelerated tumor growth-pointing to a potential biological mechanism for rapid progression.
These findings suggest that integrating radiological, clinical, and genetic markers can refine surveillance strategies for high-risk individuals.