Osteoid Osteoma in the Sacrum - A Case Report -

Seong Soo Chung; Jong Seo Lee; Sang Ho Moon; Byoung Ho Suh

doi:10.7469/JKSS.2006.13.2.147

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Chung, Lee, Moon, and Suh: Osteoid Osteoma in the Sacrum - A Case Report -

Case Report

Journal of Korean Spine Surg 2006;13(2):147-151.

Published online: 18 February 2006

DOI: https://doi.org/10.7469/JKSS.2006.13.2.147

Osteoid Osteoma in the Sacrum - A Case Report -

Seong Soo Chung, M.D., Jong Seo Lee, M.D., Sang Ho Moon, M.D.^#,, Byoung Ho Suh, M.D.^#

Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

^{^#}Department of Orthopedic Surgery, Handong University Sunlin Hospital, Pohang, Korea

Address reprint requests to Sang Ho Moon, M.D. Department of Orthopedic Surgery, Handong University Sunlin Hospital 69-7 Daesin-dong, Pohang, 791-704, Korea Tel: 82-54-245-5148, Fax: 82-54-245-5311, E-mail: msh@sunlin.com

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Osteoid osteomas occur most commonly in the lumbar spine. However, they rarely occur in the sacrum, and there is no report of such a case in Korea. We report a case of osteoid osteoma in the sacrum in a 15-year-old boy who was treated by a surgical excision with a satisfactory outcome. Although unusual, an osteoid osteoma should be considered when making a differential diagnosis of benign tumors in the sacral areas.

Keywords: Sacrum, Osteoid osteoma

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Fig. 1.

Preoperative radiographs of the sacrum show osteolytic lesions of sacrum (arrows). (A) Anteroposterior view. (B) Lateral view.

Fig. 2.

Preoperative CT scans show a low density lesion in which contains high density lesion in the 4th sacrum(arrows). (A) Axial view. (B) Sagittal view.

Fig. 3.

Preoperative T2-weighted MR image shows high signal intensity area in the 4th sacrum(arrow).

Fig. 4.

An intraoperative photogragh of the excised mass of the patient shows about 8 mm × 5 mm size.

Fig. 5.

(A) The histologic examination shows irregular bone trabeculae with prominent vascularity of the intervening tissue (hematoxylin and eosin stain, ×100). (B) At high magnification, the lesional bone is covered by plump but uniform osteoblasts, and one osteoclast(hematoxylin and eosin stain, ×200).

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