Successful resection of a huge retroperitoneal venous hemangioma: A case report

Figure 1 Imaging findings of a retroperitoneal mass. A: CT scans of the abdomen demonstrates a hypodense mass in the right retroperitoneum; B: The enhanced CT shows the mass without remarkable enhancement; C: On MRI, T1-weighted image shows the mass as low signal intensity without enhancement; D: T2-weighted image shows the mass with high signal intensity. CT: Computed tomography; MRI: Magnetic resonance imaging.

Figure 2  During operation, the cystic wall with duodenal adhesion was completely removed by laparotomy (as shown by the arrow).

Figure 3 Pathologic findings of the venous hemangioma. A: The specimen tissues are composed of various-sized cystic cavities with walls consisting of single-layered flattened cells; B: Immunohistochemically, the endothelial cells are positive for CD34; C: Some endothelial cells are positive for CD31; D: Some endothelial cells are positive for D2-40.