Difference between revisions of "Oesophageal Diverticula"
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==Typical Signalment== | ==Typical Signalment== | ||
| − | + | *Rare in small animals | |
| + | *More common in dogs than cats | ||
| + | *No important breed or sex predisposition | ||
==Description== | ==Description== | ||
A circumscribed sacculation of the oesophageal wall. These can be divided into congenital or acquired. Congenital diverticula are due to a herniation of the mucosa through a muscularis defect. Acquired diverticula can be subdivided into: | A circumscribed sacculation of the oesophageal wall. These can be divided into congenital or acquired. Congenital diverticula are due to a herniation of the mucosa through a muscularis defect. Acquired diverticula can be subdivided into: | ||
| Line 24: | Line 26: | ||
*may be subclinical if small | *may be subclinical if small | ||
===Laboratory Tests=== | ===Laboratory Tests=== | ||
| − | + | Normal | |
===Diagnostic Imaging=== | ===Diagnostic Imaging=== | ||
| − | + | '''Survey radiography''': may show an air/soft tissue density next to or involving the oesophagus | |
| + | '''Contrast radiography''': will show focal dilation or a partial or complete filling of contrast media in the lumen of the oesophagus. | ||
| + | '''Endoscopy''': will confirm the diagnosis | ||
==Treatment== | ==Treatment== | ||
Revision as of 11:33, 10 August 2009
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This article is still under construction. |
Typical Signalment
- Rare in small animals
- More common in dogs than cats
- No important breed or sex predisposition
Description
A circumscribed sacculation of the oesophageal wall. These can be divided into congenital or acquired. Congenital diverticula are due to a herniation of the mucosa through a muscularis defect. Acquired diverticula can be subdivided into:
- Traction forms consists of all the oesophageal layers and results from peri-oesophageal inflammation and fibrosis and develop mainly in the cranial and mid-oesophageal body. Sacculations are created by adhesions to adjacent tissues.
- Pulsion forms includes the epithelium and connective tissue and results from:
- an increase in intraluminal oesophageal pressure
- abnormal local oesophageal motiltiy
- deep oesophageal inflammation
- a stenosis interupting normal peristalsis
- vascular ring abnormalities
- lodged foreign bodies
Diagnosis
Clinical Signs
usually result from food/fluid impaction in the sacculated area and can present as:
- regurgitation
- odynophagia
- retching
- postprandial dyspnoea
- anorexia
- sepsis if the diverticulum becomes perforated
- may be subclinical if small
Laboratory Tests
Normal
Diagnostic Imaging
Survey radiography: may show an air/soft tissue density next to or involving the oesophagus Contrast radiography: will show focal dilation or a partial or complete filling of contrast media in the lumen of the oesophagus. Endoscopy: will confirm the diagnosis