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venule
(redirected from venular)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
venule [′ven·yül]
(anatomy)
A small vein.


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In low albumin states, the decreased plasma oncotic pressure disturbs the equilibrium between plasma and interstitial fljuid with the result that there is a decrease in the movement of the interstitial fluid back into the blood at the venular end of the capillaries.
Microscopically, the lesions begin in the centrilobular zone, consist mainly of severe sinusoidal dilatation with congestion, and are occasionally associated with fibrotic venular occlusion or nodular regenerative hyperplasia.
Scattered focal necroses containing 10-20 karyopyknotic cells are localized mainly in superficial ("skin cap") layers of the tumour and surrounding blood venular vessels, and in some superficial areas there are focal haemorrhages (photo not shown).
 
 
 
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