Retroperitoneal cystic lymphangioma in an adult: A case report and review of the literature

Figure 1 Abdominal computed tomography scan showing a large multilocular mass in the retroperitoneum (white arrows).

Figure 2 Photomicrograph of cystic lymphangioma. A: Hematoxylin & Eosin staining demonstrating multiple dilated cystic spaces filled with pale pink proteinaceous material, fascicles of smooth muscles and inflammatory cells in stroma (× 100); B: CD31 immunostain showing positive staining of cystic lining endothelial cells (× 100); C: D2-40 antibody immunostain showing positive staining of cystic lining endothelial cells (× 100); D: Calretinin immunostain showing negative staining (× 100); E: HMB-45 immunostain showing negative staining (× 100); F: EMA immunostain showing negative staining (× 100).