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==Description==

==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''' is characterised by dilation and dysfunction of the lymphatic vessels of the intestines.  Consequently, protein rich lymph leaks into the intestinal lumen, causing a [[Intestines Protein-Losing Diseases - Pathology|

protein-losing enteropathy]] and severe lipid malabsorption.  It is relatively common in dogs but rare in cats.   

Lymphangiectasia can be classified into a primary or a secondary lymphangiectasia.  '''Primary lymphangiectasia''' may form part of a localised or a more widespread lymphatic abnormality.  '''Secondary lymphangiectasia''' results from lymphatic obstruction, which may be caused by:

Lymphangiectasia can be classified into a primary or a secondary lymphangiectasia.  '''Primary lymphangiectasia''' may form part of a localised or a more widespread lymphatic abnormality.  '''Secondary lymphangiectasia''' results from lymphatic obstruction, which may be caused by:

Lymphangiectasia 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 also cause a granuloma to form.

Lymphangiectasia 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 also cause a granuloma to form.

==Diagnosis==

==Diagnosis==