PMC2989001_01
Sagittal oblique T1-weighted fast spin echo image with chemical fat saturation and intravenous gadolinium reveals heterogeneous enhancement of a mass within the infrascapular region (arrow)
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Fig1
The tumor was composed of short, intersecting fascicles of spindle cells with scattered small lymphocytes (original magnification, x400)
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Fig2
At high power, the majority of tumor cells demonstrated fusiform pale eosinophilic cytoplasm and elongated, blunt-ended nuclei (original magnification, x400). These cells were strongly positive for the smooth muscle marker h-caldesmon by immunohistochemistry (not shown)
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Fig3
In situ hybridization for the LANA gene showed expression in smooth muscle cells and lymphocytes (original magnification, x200)
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Fig4