PMC4323510_01
Mass lesion with hypointensity in T1-weighted images (arrow) (A), with slightly lower signal than CSF in T2-weighted images (arrow) (B), and slightly heterogeneous gadolinium-enhanced T1-weighted images (C) upon sagittal thoracic spine MRI. CSF : cerebrospinal fluid.
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F1
T7-8 vertebral body levels. This lesion was hypointense upon the T1-weighted images (Fig. 1A), with a slightly lower signal than the cerebrospinal fluid (CSF) on the T2-weighted images (Fig. 1B), and slight heterogeneous staining on the gadolinium-enhanced T1-weighted images (Fig. 1C).
Mass displacing the spinal cord to the right side in the axial plane in the T2-weighted (A) and fat suppression T1-weighted enhanced (B) images uponthe MRI.
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F2
Additionally, it was observed that the spinal cord was displaced to the right side due to the mass (Fig. 2).
Extradural hemorrhagic mass located in the operating field (arrows) (A) and its gross finding after total removal (B).
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F3
Flattened endothelium-coated large dilated blood vessels (H&E, x40).
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F4
The histopathological examination revealed a cavernous hemangioma, composed of large dilated blood-filled vessels lined with flattened endothelium (Fig. 4).