Abdominal ascites is most commonly caused by portal hypertension from liver cirrhosis. When present, portal hypertension is associated with an elevated serum-ascites albumin gradient (SAAG) ≥1.1 g/dL. In contrast, a SAAG < 1.1 g/dL suggests malignancy, tuberculosis, pancreatitis, or nephrotic syndrome. Here, we present a case of low SAAG ascites caused by epithelioid peritoneal mesothelioma in a woman with no known liver disease. The diagnosis proved elusive until diagnostic laparoscopy with biopsy was performed.
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机译：腹水最常见的原因是肝硬化引起的门脉高压。如果存在门脉高压症，则其血清腹水白蛋白梯度（SAAG）升高≥1.1g / dL。相反，SAAG <1.1 g / dL则表明是恶性，结核，胰腺炎或肾病综合征。在这里，我们介绍了一例由上皮样腹膜间皮瘤引起的低SAAG腹水的病例，该患者没有已知的肝病。在进行诊断性腹腔镜活检之前，诊断难以捉摸。
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