Zenker's diverticulum classification: Difference between revisions

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{{Zenker's diverticulum}}
{{Zenker's diverticulum}}
{{CMG}} {{AE}}
{{CMG}} {{AE}} {{Ajay}}


==Overview==
==Overview==
The three different types of the esophageal diverticula are as follows Phrenoesophageal (Zenker's diverticulum-70%), Epiphrenic, Thoracic and mediastinal.
Diverticula of the esophagus can be classified into phrenoesophageal ([[Zenker's diverticulum]]-70%), epiphrenic, [[thoracic]] and [[Mediastinum|mediastinal]].


==Classification==
==Classification==
* Esophageal diverticula are classified on the basis of  location into three types<ref name="urlEtiopathogenesis and classification of esophageal diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/3938781 |title=Etiopathogenesis and classification of esophageal diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref><ref name="urlOesophageal diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/2533826 |title=Oesophageal diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref><ref name="urlCause and treatment of epiphrenic diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/16307941 |title=Cause and treatment of epiphrenic diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref>
* [[Esophageal]] [[Diverticular|diverticula]] are classified on the basis of  location into three types<ref name="urlEtiopathogenesis and classification of esophageal diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/3938781 |title=Etiopathogenesis and classification of esophageal diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref><ref name="urlOesophageal diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/2533826 |title=Oesophageal diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref><ref name="urlCause and treatment of epiphrenic diverticula. - PubMed - NCBI">{{cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/16307941 |title=Cause and treatment of epiphrenic diverticula. - PubMed - NCBI |format= |work= |accessdate=}}</ref>


* Almost all esophageal diverticula are acquired pulsion diverticula.
* Almost all [[esophageal]] [[Diverticular|diverticula]] are acquired pulsion diverticula.
1. Phrenoesophageal (Zenker's diverticulum-70%)  
1. Phrenoesophageal ([[Zenker's diverticulum]]-70%)  
*ZD is a defect over the Killian's triangle, a point of weakness in the muscular wall of the hypopharynx
*[[Zenker's diverticulum|ZD]] is a defect over the [[Killian's dehiscence|Killian's triangle]], a point of [[Weakness (medical)|weakness]] in the [[muscular]] wall of the [[hypopharynx]]
2. Epiphrenic (20%)   
2. Epiphrenic (20%)   
*Epinephric diverticula result either from hypertonia of the lower esophageal sphincter (esophageal achalasia)
*Epinephric [[Diverticular|diverticula]] result either from [[hypertonia]] of the [[lower esophageal sphincter]] ([[esophageal]] [[achalasia]])
3. Thoracic and mediastinal (10%)   
3. Thoracic and mediastinal (10%)   
*Thoracic diverticula are probably more often of a congenital than traction origin.  
*[[Thoracic]] [[Diverticular|diverticula]] are probably more often of a [[congenital]] than traction origin.  
{| class="wikitable"
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Type of diverticulum
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Major characteristics
|-
|'''Zenker's diverticulum'''
|
* Defect over Killian's triangle
* Weakness in the [[muscular]] wass of [[hypopharynx]]
|-
|'''Traction diverticulumm'''
|
* Small
* Mid-[[esophagus]]
* Motor disorder or post-[[inflammatory]]
|-
|'''Epiphrenic diverticiulum'''
|
* Above lower [[esophageal]] sphincter
* Background of a motility disorder such as [[Achalasia|achlasia]] or [[diffuse esophageal spasm]]
* [[Nocturnal]] [[regurgitation]] of fluids
|-
|'''Thoracic diverticulum'''
|
* Rare (10 % of [[esophageal]] diverticula)
* [[Dysphagia]] and [[regurgitation]]
* Due to [[congenital]] reasons, traction, pulsion and [[neuromuscular]] incoordination (functional)
* Epibronchial variety most common
|-
|'''Mediastinal diverticulum'''
|
* Most commonly secondary to traction (for example from [[Calcified lesion|calcified]] [[Lymph node|lymph nodes]] after tuberculosis)
|}


==References==
==References==

Latest revision as of 02:04, 7 December 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ajay Gade MD[2]]

Overview

Diverticula of the esophagus can be classified into phrenoesophageal (Zenker's diverticulum-70%), epiphrenic, thoracic and mediastinal.

Classification

1. Phrenoesophageal (Zenker's diverticulum-70%)

2. Epiphrenic (20%)

3. Thoracic and mediastinal (10%)

Type of diverticulum Major characteristics
Zenker's diverticulum
Traction diverticulumm
Epiphrenic diverticiulum
Thoracic diverticulum
Mediastinal diverticulum

References

  1. "Etiopathogenesis and classification of esophageal diverticula. - PubMed - NCBI".
  2. "Oesophageal diverticula. - PubMed - NCBI".
  3. "Cause and treatment of epiphrenic diverticula. - PubMed - NCBI".

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