PMC7397391_01
Sagittal views of thoracic magnetic resonance images on T2-weighted images (a) and T1-weighted images (b). T10 vertebral body demonstrated low intensity on the T2- and T1-weighted images and small epidural mass (yellow arrow) at the T9 dorsal side of the central canal was hyperintense on the T2-weighted images and was iso- to hyperintense on the T1-weighted images. These findings indicate T10 vertebral fracture and epidural hemorrhage.
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T2- and T1-weighted images (Figures 1(a) and 1(b)). The MRI also revealed a small epidural mass at the T9 dorsal side of the central canal. The lesion was hyperintense on T2-weighted images and was isointense to hyperintense on T1-weighted images.
(a) T2 sagittal image showing a growing extradural mass (yellow arrow) at T9 level. (b) T1 sagittal image. (c) T1-enhanced sagittal image. (d) T2 axial image. (e) Computed tomography (CT) sagittal image demonstrating burst fracture of T10 vertebral body and slightly high-intensity mass at T9 level (yellow arrow). (f) CT axial image demonstrating mass effect at the right facet joint (yellow arrow).
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T2-weighted images and low intensity on T1-weighted images (Figures 2(a) and 2(b)). The MRI also showed an epidural mass that demonstrated low intensity on both T2- and T1-weighted images at the T9 dorsal side of the central canal. This lesion had become larger in size than that observed previously. T1-weighted MRI scan was not clear (Figure 2(c)). The spinal cord was compressed by this mass at this level (Figure 2(d)). T10 burst fracture and the cavity in the vertebral body (Figure 2(e)). The density of the epidural mass was slightly increased, and the mass was located near the T9/T10 facet joint (Figure 2(f)).
Hematoxylin and eosin staining. (a) Low power view (4x magnification). (b) High power view (20x magnification). Sections of the obtained specimen reveal multifocal massive deposition of calcified amorphous material (yellow arrow), which is surrounded by a thick layer of foreign body granuloma.
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Histopathological examination of this mass revealed a multifocal massive deposition of calcified amorphous material (Figure 3), which was consistent with tumoral calcinosis.