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laryngeal cysts

Monday 18 April 2005

cordal cysts ; vocal cord cyst, vocal fold cyst

PO

Types

- laryngeal tonsillar cysts

  • laryngeal cysts associated with tonsillar lymphoid tissue
  • laryngeal cysts having squamous lined crypt-like structures and abundant follicular lymphoid tissue : "tonsillar cysts."
  • follicular lymphoid tissue is present in most laryngeal cysts and may play some pathogenetic role in their formation.

- prominent epithelial component and focal follicular lymphoid aggregates.

- laryngeal cysts unassociated with lymphoid tissue

  • laryngeal oncocytic cysts : oncocytic changes on the surface mucosa and in adjacent salivary gland tissue ; oncocytic metaplasia.

- cordal epithelial cysts

  • malformative cordal cysts

- laryngeal ductal cyst (75%) or laryngeal saccular cysts(24%) : lined by squamous or respiratory mucosa or both

  • laryngeal ductal cyst : due to dilation of mucous glands; small, superficial, usually in true vocal cord or epiglottis

- laryngocele : air containing dilation of tip of ventricle that communicates with ventricle via a narrow stalk; either internal or external or both; may become infected and accumulate pus (laryngopyocele)

- laryngeal oncocytic cyst

  • type of ductal cyst lined partially or completely by oncocytes ;
  • often has papillary infoldings;
  • may recur;
  • rarely is diffuse within the larynx

- laryngeal saccular cyst

  • due to distention of laryngeal saccule ;
  • large, deep, often within ventricle ;
  • may cause neonatal airway obstruction ;
  • contains mucus

- laryngeal tonsillar cyst: squamous lined crypt-like structure with abundant lymphoid follicles in cyst wall

Diagnosis of laryngeal cysts

See also

- laryngeal cysts
- cysts

  • mucosal cysts

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