Diagnosis of ascites according to the serum ascites albumin gradient (SAAG)

SAAG ≥ 1.1:

 - Ascitic protein ≤ 2.5 g/dL: Cirrhosis, Late Budd-Chiari syndrome, Massive liver metastases

 - Ascitic protein ≥ 2.5 g/dL: Heart failure/constrictive pericarditis, Early Budd-Chiari syndrome, IVC obstruction, Sinusoidal obstruction syndrome

SAAG < 1.1: Biliary leak, Nephrotic syndrome, Pancreatitis, Peritoneal carcinomatosis, Tuberculosis



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