Sharmila Tagore lung cancer: What is zero-stage lung cancer, and how is it detected?

Veteran actress Sharmila Tagore's early-stage lung cancer diagnosis has brought attention to zero-stage lung cancer, also known as carcinoma in situ. Discovered during a routine check, this pre-cancerous stage, with abnormal cells confined to the lung lining, was successfully treated with surgery alone. This highlights the importance of early detection through screenings, especially for high-risk individuals.

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