Larynx and hypopharynx
Inflammatory / infectious lesions
Acute laryngoepiglottitis

Author: Nat Pernick, M.D. (see Authors page)

Revised: 16 March 2018, last major update November 2013

Copyright: (c) 2002-2018,, Inc.

PubMed Search: Acute laryngoepiglottitis

Cite this page: Pernick, N. Acute laryngoepiglottitis. website. Accessed November 17th, 2018.
Definition / general
  • Also called acute supraglottitis
  • Rare; due to Haemophilus influenza type B or Streptococcus pyogenes; reduced incidence due to childhood vaccine for H. influenza
  • May produce sudden lethal swelling of epiglottis and vocal cords
  • Croup: laryngotracheobronchitis in children; inflammatory narrowing produces inspiratory stridor
Gross description
  • Red and edematous epiglottis
Microscopic (histologic) description
  • Acute inflammatory infiltrate with edema, extending to adjacent soft tissues
Microscopic (histologic) images

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H. influenza (site unknown)