PMC4735251_01
Preoperative MR images. a, b Axial and parasagittal T2-weighted MRI scans showing an inhomogeneous hyperintense prepontine lesion with a mass effect on the brainstem. c, d Axial and parasagittal T1-weighted MRI scan after administration of gadolinium contrast show inhomogeneous enhancement. e Axial T1-weighted MRI scan shows an inhomogeneous hypointense prepontine lesion. f Parasagittal constructive interference steady state (CISS) MRI scan shows an inhomogeneous hyperintense prepontine lesion
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Fig1
After administration of IV gadolinium, there was some inhomogeneous enhancement (Fig. 1).
Postoperative MR images. A complete tumour removal is shown on the a parasagittal T1-weighted sequence, b axial T2-weighted sequence and c axial T1-weighted sequence after administration of gadolinium contrast
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Fig2
The postoperative MRI showed a complete removal of the tumour (Fig. 2).
Histopathological imaging. The lesion shows vacuolated tumour cells with a pale cytoplasm and moderate nuclear polymorphism in a chondromyxoid matrix. These findings are a characteristic of chordoma
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Fig3
Moderate nuclear polymorphism was observed but no obvious mitotic activity (Fig. 3).