PMC3134034_01
An axial computed tomography demonstrating a right paraspinal abscess.
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F1
Abdominal CT scan was performed, and the report led to the diagnosis of a paraspinal abscess formation (fig. 1).
a Phagocytic activity of neoplastic cells (H&E, x 200); b positive reactivity of malignant xanthomatous cells (CD68, x 400); c positive reactivity of malignant cells (vimentin, x 200).
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F2
Immunohistochemistry revealed positive reactivity to CD68 and vimentin and negative reactivity to CKAE1, CKAE3, EMA, CD45, CD15, CD30, S100, HMB45, MELAN-A, actin, desmin, MVOD1, CD34, CD99, chromogranin, and synaptophysin (fig. 2).
Magnetic resonance imaging (sagittal and coronary views) demonstrating a large heterogeneous mass with lobular peripheral architecture at the anatomical site of the right sacrospinalis muscle, with malignant infiltration of the right iliac bone.
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F3
Our patient was scheduled for magnetic resonance imaging, which showed a large heterogeneous space-occupying lesion with lobular peripheral architecture at the anatomical site of the right sacrospinalis muscle, with signs of malignant infiltration of the right iliac bone (fig. 3).