Department of Pathology;
Tri-Service General Hospital;
National Defense Medical Center;
Taipei;
Taiwan;
Department of Physical Medicine and Rehabilitation;
Tri-Service General Hospital;
National Defense Medical Center;
Taipei;
Taiwan;
Hemangioma; Intravascular; Papillary; Endothelial; Hyperplasia; (IPEH); Lumbosacral; Plexopathy; Masson’s; Hemangioma; Retroperitoneal; Tumor;