Abnormal buildup of peritoneal fluid
Most commonly caused by portal hypertension<unk>  fluid can become infected (spontaneous bacterial peritonitis), carrying a mortality rate between 30%-90%
Cirrhosis 81%
Malignancy 10%
Heart failure 3%
Tuberculosis 2%
Other 4%
Ascites
Obesity
Hepatic abscess
Intestinal obstruction
Symptomatic cholelithiasis
Pregnancy
Acute hepatitis
Peritonitis