Related Experiment Video
Updated: May 12, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
Mixed capillary venous retroperitoneal hemangioma
Mohit Godar1, Qinghai Yuan, Rukeshman Shakya
1Department of Radiology, The Second Hospital of Jilin University, Norman Bethune College of Medicine, 218 Ziqiang Street, Nanguan District, Changchun, Jilin 130041, China.
We report a case of mixed capillary venous hemangioma of the retroperitoneum in a 61-year-old man. Abdominal ultrasonography showed a mass to be hypoechoic with increased flow in color Doppler imaging. Dynamic contrast-enhanced computed tomography revealed a centripetal filling-in of the mass, located anterior to the left psoas muscle at the level of sacroiliac joint. On the basis of imaging features, preoperative diagnosis of hemangioma was considered and the mass was excised by laparoscopic method. Immunohistochemical studies were strongly positive for CD31 and CD34, and negative for calretinin, EMA, WT1, HMB45, Ki67, synaptophysin, and lymphatic endothelial cell marker D2-40. Histologically, the neoplasm was diagnosed as mixed capillary venous hemangioma.
We report a case of mixed capillary venous hemangioma of the retroperitoneum in a 61-year-old man. Abdominal ultrasonography showed a mass to be hypoechoic with increased flow in color Doppler imaging. Dynamic contrast-enhanced computed tomography revealed a centripetal filling-in of the mass, located anterior to the left psoas muscle at the level of sacroiliac joint. On the basis of imaging features, preoperative diagnosis of hemangioma was considered and the mass was excised by laparoscopic method. Immunohistochemical studies were strongly positive for CD31 and CD34, and negative for calretinin, EMA, WT1, HMB45, Ki67, synaptophysin, and lymphatic endothelial cell marker D2-40. Histologically, the neoplasm was diagnosed as mixed capillary venous hemangioma.
Related Concept Videos
Portal Hypertension
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
