PMC3491191_01
a Axial T1-weighted gadolinium-enhanced image shows a strongly enhancing 1.5 x 1.5 cm nodule in the right parietal cortex surrounded by vasogenic edema. b Axial T2-weighted image demonstrates vasogenic edema surrounding a low-signal central nodule
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Fig1
Magnetic resonance imaging (MRI) showed a 1.5 x 1.5 cm enhancing nodular lesion with moderate surrounding edema in the right parietal lobe (Fig. 1).
Nongranulomatous encephalitis. a Hematoxylin and eosin (H&E)-stained brain section shows scattered lymphocytic infiltrates and perivascular lymphocytic cuffing. b Brain section stained for leukocyte common antigen demonstrates perivascular lymphocytic cuffing
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Fig2
The final examination of the pathological specimens showed a nongranulomatous encephalitis that consisted of diffuse lymphocytic infiltrates and perivascular lymphocytic cuffing (Fig. 2).