PMC4838918_01
Magnetic resonance imaging showing (a) T1-weighted sagittal, (b) T2-weighted sagittal, (c) contrast-enhanced T1-weighted sagittal, (d) STIR sequence coronal images (hyperintense signal, suggestive of intralesional bleed), (e) contrast-enhanced T1-weighted coronal image (small rim of enhancement at the superior pole), (f) T2-weighted axial image, and (g) contrast-enhanced T1-weighted image at the superior pole (D12-L1 level showing rim-enhancement)
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F1
On magnetic resonance imaging (MRI), the lesion was well-demarcated, extending from T12 to L2 [Figure 1a-g]. In addition, the short tau inversion recovery (STIR) MRI demonstrated uniform hyperintensity, suggestive of an intralesional bleed [Figure 1d].
Photomicrographs of paraganglioma showing (a) well-circumscribed lesion (starred) with predominant hemorrhage. (b) The cellular component is arranged in sinusoidal pattern separated by thin-walled blood vessels. (c) Cells have a plasmacytoid appearance, with abundant cytoplasm. (c - inset) The intracytoplasmic granules express chromogranin (a: H and E, x50; b: H and E, x100; c: H and E, x400; c-inset = immunoperoxidase, chromogranin)
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F2
The histopathology was consistent with a paraganglioma containing areas of fresh hemorrhage [Figure 2].
Magnetic resonance imaging lumbar spine at 6 months follow-up (a) T1-weighted sagittal, (b) T2-weighted sagittal, (c) contrast-enhanced T1-weighted sagittal images, showing no evidence of residual or recurrent tumor
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F3
The follow-up MRI showed no evidence of residual or recurrent tumor [Figure 3].