In which of the following disease, Screening procedure increases the overall survival maximum?: (A) Prostate cancer, (B) Lung cancer, (C) Colon cancer, (D) Ovarian cancer
Answer is C. Colonic cancer has highest 5-year survival rate post-screening. - This can be known by Kaplan meiyer survival analysis. - Screening of colonic cancer is done by colonoscopy. SCREENING TESTS OF OTHER OPTIONS: - Prostate cancer : Prostate specific antigen + DRE - Lung cancer : Chest x-ray - Ovarian cancer: transvaginal ultrasound (TVUS) & CA-125 blood test.