<prompt> 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 prognosisbcadab  <response>: Cancer LarynxMost common histological type of laryngeal Ca - Squamous cell carcinoma seen in 90 casesIt is more common in malesMale: Female ratio is 4: 1 option a is incorrectMost common age 60-70 years.MnemonicAetiology: Risk factors:- Mnemonic CA LARGESC Chronic laryngitisA AlcoholL LeukoplakiaA AsbestosisR RadiationG Mustard GasE Exposure to petroleum productsS SmokingPrognosis of Laryngeal CancerCure 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 incorrectSo option a and d are both incorrect but if one option is to be chosen, go for option a. 