Oesophageal diverticula

Oesophageal diverticula are sac or pouch projections arising from the oesophagus.

They can occur in all ages but more frequent in adults and elderly people.

Oesophageal diverticula are either:

  • true diverticula: include all esophageal layers
  • false diverticula: contain only mucosa and submucosa herniating through the muscular layer (e.g. Zenker's diverticulum)

Oesophageal diverticula are classified according to the mechanism of formation into:

  • traction diverticula: occurs secondary to pulling forces on the outer aspect of the oesophagus
  • pulsion diverticula: occurs secondary to increased intraluminal pressure (e.g. Zenker diverticulum)

They can be classified according to their location:

Upper oesophageal diverticula
Middle oesophageal diverticula
  • traction diverticula: are (true diverticula) which occur secondary to scarring, fibrosis and inflammatory processes (tuberculous adenitis) in the mediastinum pulling on the oesophageal wall
  • pulsion diverticula: are usually false diverticula and occur secondary to abnormal increased intraluminal pressure against a weak esophageal segment
Lower oesophageal diverticula

Oesophageal pathology
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Article Information

rID: 30267
Section: Pathology
Synonyms or Alternate Spellings:
  • Diverticula of oesophagus
  • Oesophageal diverticulum
  • Esophageal diverticulum
  • Esophageal diverticula

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Cases and Figures

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    Case 1: Zenker diverticulum
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    Case 2: middle traction diverticulm
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    Case 3: lower epiphrenic diverticulum
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    Case 4
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    Case 5
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    Case 6: pulsion diverticulum
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