Changes

Modified transudates are a type of effusion whose cell count and protein content are intermediate between a [[Transudate|transudate]] and an [[Exudate|exudate]].  In some cases, modified transudates may represent a transitional stage before the development of an exudate (as with uroabdomen, which begins as a modified transudate but develops into a chemical exudative peritonitis over time).  Modified transudates arise as a result of disruptions to the endothelium or imbalances in the [[Control of Blood Pressure & Blood Flow - Anatomy & Physiology#Capillary Fluid Shift Mechanism |'''Starling forces''']].  Common causes include:

Modified transudates are a type of effusion whose cell count and protein content are intermediate between a [[Transudate|transudate]] and an [[Exudate|exudate]].  In some cases, modified transudates may represent a transitional stage before the development of an exudate (as with uroabdomen, which begins as a modified transudate but develops into a chemical exudative peritonitis over time).  Modified transudates arise as a result of disruptions to the endothelium or imbalances in the [[Control of Blood Pressure & Blood Flow - Anatomy & Physiology#Capillary Fluid Shift Mechanism |'''Starling forces''']].  Common causes include:

*'''Increased vascular hydrostatic pressure''' resulting from inappropriate activation of the renin-angiotensin-aldosterone system (RAAS) in '''portal hypertension''' or '''congestive heart failure'''.

*'''Increased vascular hydrostatic pressure''' resulting from inappropriate activation of the renin-angiotensin-aldosterone system (RAAS) in '''portal hypertension''' or '''congestive heart failure'''.

*'''Vasculitis''', caused by '''[[Feline Infectious Peritonitis|feline infectious peritonitis virus]]''' (FIPV) or '''neoplasia'''.  For further discussion of the effusion encountered with FIP, see [[Feline Infectious Peritonitis|here]].

*'''Vasculitis''', caused by '''[[Feline Infectious Peritonitis|feline infectious peritonitis virus]]''' (FIPV) or '''neoplasia'''.  ([[Feline Infectious Peritonitis|Further discussion of the effusion encountered with FIP.]])

*'''Strangulation of abdominal or thoracic organs''' may lead to the production of a modified transudate (which will develop into an exudate if untreated).  This may occur with '''lung lobe torsion''', '''torsion of the spleen''' or of a [[Liver Torsion|liver lobe]] or if part of the liver becomes strangulated within a [[Diaphragmatic Rupture|'''diaphragmatic rupture''']].  

*'''Strangulation of abdominal or thoracic organs''' may lead to the production of a modified transudate (which will develop into an exudate if untreated).  This may occur with '''lung lobe torsion''', '''torsion of the spleen''' or of a [[Liver Torsion|liver lobe]] or if part of the liver becomes strangulated within a [[Diaphragmatic Rupture|'''diaphragmatic rupture''']].  

*'''[[Chylous Effusion|Chylous effusions''']] are sometimes considered to be a type of modified transudate.

*'''[[Chylous Effusion|Chylous effusions''']] are sometimes considered to be a type of modified transudate.