This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'All the following are true about Laryngeal carcinoma except-a) More common in femalesb) Common in patients over 40 years of agec) After laryngectomy, esophageal voice can be usedd) Poor prognosis \nSelect and explain. \nA. b, B. c, C. ad, D. ab', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cancer Larynx\n\nMost common histological type of laryngeal Ca - Squamous cell carcinoma (seen in 90% cases)\nIt is more common in males\nMale: Female ratio is 4: 1) (option a is incorrect)\nMost common age = 60-70 years.\n\nMnemonic\nAetiology: Risk factors:- Mnemonic “CA LARGES”\nC – Chronic laryngitis\nA – Alcohol\nL – Leukoplakia\nA – Asbestosis\nR – Radiation\nG – Mustard Gas\nE – Exposure to petroleum products\nS – Smoking\nPrognosis of Laryngeal Cancer\n\nCure for larynx cancer, defined as 5 year disease free survival is generally better than for other primary site tumors of the aerodigestive tract. This reflects the prevalence of primary glottic tumors over supraglottic tumors and the early age at which glottic tumours are diagnosed (Hence option d is incorrect)\nSo option a and d are both incorrect but if one option is to be chosen, go for option ‘a’.', 'role': 'assistant'}]