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What is A child with three days history of upper respirotory tract infection presents with stridor, which decreases on lying down postion. What is the most probable diagnosis and explain in detail?
Biphasic stridor usually originates from subglottic or proximal tracheal lesions. laryngotracheobranchitis presents in children of 1-5 years of age with biphasic stridor,brassy cough&low grade fever. Ref : Essential Paediatrics,O.P.Ghai,7 th edition,Pg No:339