PMC4846605_01
Preoperative plain radiograph of the cervical spine. An osseous protrusion in the right C6/7 foramen could be observed
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Fig1
C6/7 foramen (Fig. 1). Computed tomography (CT) scans showed an osseous tumor originating in the neighborhood of the right C6/7 facet joint and occupying a part of the spinal canal (Fig. 2).
Preoperative CT and MRI of the cervical spine. Sagittal and axial CT scans demonstrated an osseous tumor originating in the neighborhood of the right C6/7 facet joint. Sagittal and axial MRI revealed an extradural mass which compressed the spinal cord severely at C6/7 level
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Fig2
C6/7 foramen (Fig. 1). Computed tomography (CT) scans showed an osseous tumor originating in the neighborhood of the right C6/7 facet joint and occupying a part of the spinal canal (Fig. 2).
Operative specimen was covered with cartilaginous tissue. The tumor originated from the neighborhood of the right C6/7 facet joint and occupied part of the spinal canal
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Fig3
The resected tumor was about 2 cm in diameter, and its surface was covered with cartilaginous tissue (Fig. 3).
Tumor pathology. Microphotograph of the specimen showed mature trabecular bone and fatty marrow capped by cartilaginous tissue (x100, hematoxylin and eosin)
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Fig4
The pathologic examination indicated mature trabecular bone with a cartilaginous cap, and we had a diagnosis of a benign osteochondroma (Fig. 4).
Postoperative plain radiograph and CT of the cervical spine. Post-operative radiograph of the cervical spine did not show each segmental instability. Moreover, post-operative CT scan showed complete resection of the tumor, and demonstrated that over 2/3 part of the facet was preserved
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Fig5
Also, post-operative CT scan showed the removal of the lesion, and demonstrated that over 2/3 part of the facet was preserved (Fig. 5).