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Case Reports
. 2014;54(5):408-12.
doi: 10.2176/nmc.cr2012-0049. Epub 2013 Oct 29.

Symptomatic osteochondroma of lumbosacral spine: report of 5 cases

Keita Kuraishi  1 , Junya Hanakita, Toshiyuki Takahashi, Mizuki Watanabe, Fumiaki Honda
Affiliations
Case Reports

Symptomatic osteochondroma of lumbosacral spine: report of 5 cases

Keita Kuraishi et al. Neurol Med Chir (Tokyo). 2014.

Abstract

We describe 5 cases of osteochondroma (OC) originating from lumbosacral spine which caused radiculopathy. Four cases originated from the lumbar spine; all from L4 inferior articular process and presented L5 radiculopathy, the other one case originated from the sacrum; the case from S1 superior articular process presented L5 radiculopathy. In all cases, definitive diagnosis was made with histopathological findings; typical cartilaginous capping was confirmed. The functional recovery was completed in all 5 cases. As for imaging study, post myelography computed tomography revealed the most diagnostic tool for understanding the relationship between nerve tissue and the tumor. In all 5 patients, the tumors contained a high signal intensity on T2-weighted images in the central medullary area. OCs are sometimes difficult to diagnose because they mimic other conditions like bony spur formation due to osteoarthritis, so we should never fail to confirm the histopathological diagnosis of such lesions when suspected.

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Conflict of interest statement

Conflicts of Interest Disclosure

The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper. All authors have registered online Self-reported COI Disclosure Statement Forms through the website for The Japan Neurosurgical Society (JNS) members.

Figures

Fig. 1
Fig. 1
(Patient 1) Computed tomography after myelography showed a bony tumor (arrow) with cortical and medullary continuity with inferior articular process of the right L4 vertebra (a). The lesion contained central cancellous bone (asterisk) displaying high signal intensity in T2-weighted image (b).
Fig. 2
Fig. 2
(Patient 2) Computed tomography after myelography showed a bony mass (arrow) with cortical and medullary continuity with superior articular process of the right S1 vertebra (a). Magnetic resonance imaging showed a high intensity cancellous area (asterisk) in T2-weighted image (b).
Fig. 3
Fig. 3
(Patient 4) Computed tomography after myelography showed a small bony tumor (arrow) with cortical and medullary continuity with inferior articular process of the right L4 vertebra (a). Magnetic resonance imaging showed a high intensity cancellous area (asterisk) in T2-weighted image (b).
Fig. 4
Fig. 4
(Patient 4) A macroscopic photograph of the surface of the tumor. The tumor is covered with a smooth cartilaginous capping (a). A photomicrograph showing cartilaginous capping (▴), the mature trabecular bone (★) and fatty bone marrow (asterisk) (H & E, original magnification ×10, b). Postoperative computed tomography (19 months) scan shows the absence of tumor recurrence (c).
See this image and copyright information in PMC

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