Clin Ultrasound.  2024 Nov;9(2):85-90. 10.18525/cu.2024.9.2.85.

A Case of Huge Retroperitoneal Cystic Mesothelioma Mimicking Diffuse Ascites

• Kim HY
• Ahn J
• Han EM
• Seo Jy

• KMID: 2561486
• DOI: http://doi.org/10.18525/cu.2024.9.2.85

Abstract

A 42-year-old female patient was found to have a lesion that appeared to be ascites during a trans-abdominal ultrasound at a local healthcare center as part of a routine health check-up. She was subsequently referred to the gastroenterology department of Bundang Jesaeng General Hospital for further evaluation. Abdomino-pelvic computed tomography (CT) and magnetic resonance imaging (MRI) revealed a cystic lesion suspected to be a retroperitoneal lymphangioma. The patient underwent laparoscopic resection based on these findings, and a postoperative pathological examination confirmed the diagnosis of cystic mesothelioma. She has been followed for 5 months after surgery without any complications or signs of recurrence. When a localized lesion resembling ascites is found in a patient without underlying conditions, it is important to include cystic tumor in the differential diagnosis. Comprehensive imaging studies like CT and MRI, along with surgical intervention and immunohistochemical analysis, are crucial for accurate diagnosis and treatment.

Keyword

Ascites; Cystic mesothelioma; Cystic lymphangioma; Ultrasonography; 복수; 낭성 중피종; 낭성 림프관종; 초음파