This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Lesions and Stridor, Subject name: ENT
[{'content': 'Laryngomalacia is characterized by: \nSelect and explain. \nA. Usually present at about the age of 5 years, B. Biphasic stridor, C. Elongated epiglottis with thin aryepiglottic folds on laryngoscopy, D. Best treatment by epiglottectomv', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C (Elongated epiglottis with thin aryepiglottic folds on laryngoscopy) Ref: Diseases of the Ear Nose and Throat by PL Dhingra.5th edn .20I0.pg314Explanation:LaryngomalaciaDue to excessive flaccidity of the supraglottis which gets sucked in during inspirationMost common congenital cause for stridorPresents soon after birth and disappears by 2 years of ageThere is inspiratory stridor which worsens on crying and decreases on lying supineO/E long elongated omega shaped epiglottis with elongated and floppy aryepiglottic folds and prominent arytenoidsTreatment is mostly conservative and reassuranceSevere cases may require surgery like epiglo- ttoplasty. supraglottoplasty', 'role': 'assistant'}]