system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Vallecula sign is seen in
assistant
The correct answer is  Depressing the tongue with a tongue depressor may show red and swollen epiglottis. Indirect laryngoscopy may show oedema and congestion of supraglottic structure. This examination is avoided for fear of precipitating complete obstruction. It is better done in the operation theatre where facilities for intubation are available. Ref: PL Dhingra 7th edition of Ear, Nose and Throat; Pg no 327