﻿第三节急性喉、气管、支气管炎急性喉气管支气管炎（acutelaryngotracheobronchitis，croup）为一常见的气道梗阻性疾病，多见于喉部急性感染以后，炎症急速下行蔓延至气管、支气管，甚至延及小支气管、毛细支气管。
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