Larynx and hypopharynx
Inflammatory / infectious lesions
Acute laryngoepiglottitis



Topic Completed: 1 November 2013

Minor changes: 30 September 2019

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PubMed Search: Acute laryngoepiglottitis


Nat Pernick, M.D.
Page views in 2019: 427
Page views in 2020 to date: 171
Cite this page: Pernick N. Acute laryngoepiglottitis. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/larynxacutelaryngoep.html. Accessed May 26th, 2020.
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)

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