Peritoneal Effusion

**Semantic type:** Finding

**Definition:** The accumulation of fluid in the peritoneal cavity, which may be serous, hemorrhagic, or the result of tumor metastasis to the peritoneum.

**Synonyms:** - Ascites - Ascites - Ascites - Ascites - Ascites - Ascites - Ascites - Ascites - Ascites - INCREASING ABDOMINAL DISTENTION OR ASCITES - PERITONEAL_EFFUSION - ascites