Document 0368 DOCN M9650368 TI Primary xanthoma of thoracic spine presenting with myelopathy. DT 9605 AU Robertson DP; Langford LA; McCutcheon IE; Department of Neurosurgery, University of Texas M. D. Anderson; Cancer Center, Houston, USA. SO Spine. 1995 Sep 1;20(17):1933-7. Unique Identifier : AIDSLINE MED/96060156 AB STUDY DESIGN. This retrospective case study reports on a patient with an isolated primary xanthoma arising in the second thoracic vertebra with paravertebral and spinal canal extension. OBJECTIVE. The possibility of this lesion's occurrence in the spine is presented with radiologic and pathologic findings appropriate for the diagnosis of spinal xanthoma. SUMMARY OF BACKGROUND DATA. Primary xanthoma of bone is an extremely rare but benign entity. It has not been previously described in this location, and has been described only once in the spine at all. METHODS. The mass was resected by curettage, and posterior instrumentation was successfully performed. Preoperative radiographs and magnetic resonance imaging of the thoracic spine were performed, as was histologic examination of the lesion. RESULTS. Radiographs of the upper thoracic spine revealed a lytic defect. Magnetic resonance imaging revealed a heterogeneous lesion that was enhanced upon the administration of gadolinium-diethylenetriaminetetraacetic acid. Histologic examination revealed a cellular lesion consisting of lipid-laden macrophages, fibroblasts, and scattered Touton giant cells. These features correspond to descriptions of primary xanthoma of bone. Two years after surgery, the patient was neurologically intact with no evidence the lesion would recur. CONCLUSIONS. Primary xanthoma of bone is considered a benign lesion and can be successfully treated by local resection without adjuvant therapy. It should be considered part of the differential diagnosis of a mass lesion, with appropriate signal characteristics presenting in a thoracic vertebra. DE Adult Case Report Diagnosis, Differential Human Male Paraparesis, Tropical Spastic/DIAGNOSIS/*ETIOLOGY/SURGERY Spinal Diseases/COMPLICATIONS/DIAGNOSIS/SURGERY *Thoracic Vertebrae/SURGERY Xanthomatosis/*COMPLICATIONS/DIAGNOSIS/SURGERY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).