Spindle cell hemangioendothelioma of the sacrum: case report.
Spindle cell hemangioendothelioma is a rare benign vascular tumor that is not known to involve the sacrum. The authors describe the case of a 31-year-old woman presenting with low-back and radicular pain without weakness or bowel or bladder dysfunction. Admission CT and MRI studies revealed a large S1-3 lytic sacral lesion. The patient initially underwent a nondiagnostic percutaneous biopsy. She subsequently underwent an open biopsy, during which the lesion was found to be highly vascular. Histological investigation revealed a vasoformative lesion consistent with spindle cell hemangioendothelioma. Preoperative embolization followed by resection via intralesional currettage resulted in resolution of symptoms up to 9 months postintervention. Despite the authors' recommendation, the patient became pregnant at that time and requested no additional follow-up imaging. The authors present the first reported case of a spindle cell hemangioendothelioma of the sacrum and review the current literature.
George Washington University School of Medicine and Health Sciences; and 
Andrea
A
Winter
Alan
A
Siu
Aria
A
Jamshidi
Martin
M
Malawer
Jonathan H
JH
Sherman
D000328:Adult; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D005260:Female; D006390:Hemangioendothelioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D006801:Humans; D012447:Sacrum / Q000473:pathology*; D012509:Sarcoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*
hemangioma; oncology; sacral tumor; spindle cell hemangioendothelioma; spindle cell hemangioma; vascular disorders; vascular malformation; vascular tumor