Difference between revisions of "Lymphangiectasia"

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(New page: {{unfinished}} {{dog}} {{cat}} ==Signalment== ==Description== ==Diagnosis== ===Clinical Signs=== ===Laboratory Tests=== ====Haematology==== ====Biochemistry==== ====Other T...)
 
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{{dog}}
 
{{dog}}
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==Signalment==
 
==Signalment==
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*Breed predisposition:
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**Yorkshire Terrier
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**Lundehund
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**Rottweiler
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**Soft Coated Wheaten Terriers
  
  
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==Description==
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'''Lymphangiectasia''' is characterised by dilation and dysfunction of the lymphatic vessels of the intestines.  Consequently, protein rich lymph leaks into the intestinal lumen, causing a protein-losing enteropathy and severe lipid malabsorption.  It is relatively common in dogs but rare in cats. 
  
==Description==
+
Lymphangiectasia can be classified as primary or secondary.  '''Primary lymphangiectasia''' may form part of of a localised or a more widespread lymphatic abnormality.    '''Secondary lymphangiectasia''' is the result of lymphatic obstruction.  The obstruction may be caused by:
 +
*inflammation, neoplastic infiltration o fibrosis
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*thoracic duct obstruction
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*right sided cardiac failure
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*caval obstruction
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*hepatic disease
  
 +
Lymphagiectasia often accompanies a lipogranulomatous inflammation, but it is not clear which is the primary event.  Lymphangitis can cause lymphatic obstruction but the leakage of lymph can cause a granuloma to form.
  
 
==Diagnosis==
 
==Diagnosis==
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===Laboratory Tests===
 
===Laboratory Tests===
 
====Haematology====
 
====Haematology====
 
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*Lymphopaenia
  
 
====Biochemistry====
 
====Biochemistry====
 
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*Hypocholesterolaemia
  
 
====Other Tests====
 
====Other Tests====

Revision as of 11:17, 12 August 2009



Category:WikiClinical CanineCow


Signalment

  • Breed predisposition:
    • Yorkshire Terrier
    • Lundehund
    • Rottweiler
    • Soft Coated Wheaten Terriers


Description

Lymphangiectasia is characterised by dilation and dysfunction of the lymphatic vessels of the intestines. Consequently, protein rich lymph leaks into the intestinal lumen, causing a protein-losing enteropathy and severe lipid malabsorption. It is relatively common in dogs but rare in cats.

Lymphangiectasia can be classified as primary or secondary. Primary lymphangiectasia may form part of of a localised or a more widespread lymphatic abnormality. Secondary lymphangiectasia is the result of lymphatic obstruction. The obstruction may be caused by:

  • inflammation, neoplastic infiltration o fibrosis
  • thoracic duct obstruction
  • right sided cardiac failure
  • caval obstruction
  • hepatic disease

Lymphagiectasia often accompanies a lipogranulomatous inflammation, but it is not clear which is the primary event. Lymphangitis can cause lymphatic obstruction but the leakage of lymph can cause a granuloma to form.

Diagnosis

Clinical Signs

Laboratory Tests

Haematology

  • Lymphopaenia

Biochemistry

  • Hypocholesterolaemia

Other Tests

Diagnostic Imaging

Histopathology

Treatment

Prognosis

References

  • Ettinger, S.J. and Feldman, E. C. (2000) Textbook of Veterinary Internal Medicine Diseases of the Dog and Cat Volume 2 (Fifth Edition) W.B. Saunders Company.
  • Hall, E.J, Simpson, J.W. and Williams, D.A. (2005) BSAVA Manual of Canine and Feline Gastroenterology (2nd Edition) BSAVA
  • Nelson, R.W. and Couto, C.G. (2009) Small Animal Internal Medicine (Fourth Edition) Mosby Elsevier.