Malignant Peritoneal Effusion

**Semantic type:** Finding

**Definition:** Accumulation of fluid in the peritoneal cavity resulting from the growth of primary or metastatic malignant neoplasms in the peritoneum.

**Synonyms:** - Ascites, Malignant - Malignant Ascites - Malignant Ascites - Malignant ascites, NOS - malignant ascites