| Cause | Frequency among patients with malignancy-related ascites |
| Peritoneal carcinomatosis | 53 percent |
| Massive liver metastases causing portal hypertension | 13 percent |
| Peritoneal carcinomatosis plus massive liver metastases | 13 percent |
| Hepatocellular carcinoma plus cirrhosis | 13 percent |
| Chylous ascites due to malignancy, usually lymphoma | 7 percent |
| Budd-Chiari syndrome due to malignancy occluding the hepatic veins | Rare |
