The integration of circulating tumor DNA (ctDNA) as a biomarker has also shown promise in refining treatment strategies. One study demonstrated that ctDNA could predict outcomes in patients with limited-stage small cell lung cancer undergoing chemoradiotherapy, suggesting its utility in monitoring treatment response (ref: Yang doi.org/10.1038/s41392-025-02445-y/). Additionally, histopathology-based artificial intelligence algorithms have been developed to predict prostate cancer metastasis, showcasing the potential of AI in enhancing diagnostic accuracy and patient stratification (ref: Cha doi.org/10.1016/j.eururo.2025.08.018/). The use of ctDNA for early detection of hepatocellular carcinoma was further validated, with findings indicating that ctDNA methylation analysis outperformed mutation analysis, establishing it as a viable non-invasive diagnostic tool (ref: Guo doi.org/10.1186/s13045-025-01747-6/). Collectively, these studies illustrate the transformative impact of integrated diagnostics in oncology, paving the way for more personalized and effective treatment approaches.