PMC3420747_01
Coronal T1-weighted contrast image shows enhancing lesion in the cavernous sinus bilaterally with sphenoid sinus fullness (black arrow).
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fig1
 MRI of brain demonstrated (Figure 1) an enhancing lesion in the cavernous sinus bilaterally with sphenoid sinus fullness.
Coronal T1-weighted contrast image shows proptosis of the right globe. There is intense enhancement and enlargement of the right superior and lateral recti (black arrow).
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fig2
There was enlargement of the right superior and the lateral recti from the retrobulbar region up to the orbital apex (Figure 2).
Coronal and Axial T1-weighted contrast image shows intensely enhancing extra-axial mass lesion extending from left cavernous area compressing and invading left anterior temporal lobe (black arrow). There is significant perilesional edema. Lateral ventricle is compressed with midline shift to the right.
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fig3
MRI, brain showed (Figure 3) intensely enhancing extra-axial mass lesion extending from the left cavernous area compressing and invading the left anterior temporal lobe.
(a) Histopathology showing mature lymphocyte infiltration with occasional macrophage; (b) and (c) immunohistochemical staining for CD3 and CD20 showing the CD3 and CD20 positive lymphocyte.
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fig4
Immunohistochemical staining for CD3 and CD20 showed that the lymphocytes were positive for both CD3 and CD20 (Figure 4).
Axial T1-weighted contrast image shows almost complete resolution of the temporal lobe lesion with mild dilatation of the left temporal horn.
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fig5
A follow-up MRI study, 1 month later, showed almost complete reduction of the lesion with mild dilatation of the left temporal horn (Figure 5).