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Lung cancer is confirmed through a series of tests that help doctors detect and identify cancer cells in the lungs. The process usually begins with a review of symptoms such as a persistent cough, chest pain, shortness of breath, or unexplained weight loss. Imaging tests like chest X-rays, CT scans, or PET scans are then used to look for any abnormal growths or nodules in the lungs. The most reliable way to confirm lung cancer is through a biopsy, where a small tissue sample from the lung is examined under a microscope to detect cancer cells. Additional tests such as bronchoscopy, needle aspiration, blood tests, or sputum cytology may also be done for further confirmation. For an accurate diagnosis and effective treatment plan, it is essential to consult the Best Oncologist in Delhi, who can offer advanced diagnostic procedures, expert care, and personalized treatment options to ensure the best possible outcome.