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==Functional anatomy==
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{{frontpage
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|pagetitle =Venous Pathology
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'''Functional anatomy'''
    
Larger veins have a simailar archiecture to arteries, though thinner walled.   
 
Larger veins have a simailar archiecture to arteries, though thinner walled.   
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The main distinguishing feature of veins is their posession of valves.
 
The main distinguishing feature of veins is their posession of valves.
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==Developmental pathology==
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'''Obstruction''' of the venous circulation creates high pressure in the capillary beds surrounding the affected area.  As a result, edema and/or effusion are very common clinical signs seen in these types of diseases.  Some specific examples of venous diseases are detailed below including Budd-Chari-Like syndrome, Portal Vein Thrombosis, and Cranial Vena Cava Syndrome.
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<categorytree mode=pages>Venous Pathology</categorytree>
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[[Arteriovenous Anastamoses]].
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==[[Venous Dilation]]==
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[[Category:Cardiovascular_System_-_Pathology]][[Category:To_Do_-_Cardiovascular]]
==Phlebitis==
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Often accompanied and preceding venous thrombosis.  May be due to:
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*Non-sterile venae punture.
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*Umbilical lesions; omphalophlebitis.
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*Bacteraemia.
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Most often seen in the venae cava, jugular veins and portal veins.
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==Thrombosis==
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Spontaneous venous thrombosis is rare.  Seen in cattle with traumatic reticulo-peritonitis in the caudal vena cava.
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==Rupture==
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[[Exercise Induced Pulmonary Haemorrhage - Pathology|Exercise Induced Pulmonary Haemorrhage]]
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seen in racehorses after exertion.  Pulmonary vessels rupture leading to pulmonary haemorrhage.[[Category:Cardiovascular_System_-_Pathology]][[Category:To_Do_-_Cardiovascular]]
 
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