CT and MR Imaging Findings in Cerebral Toxocaral Disease
E. Xinoua,
A. Lefkopoulosa,
M. Gelagotib,
A. Drevelegasa,
A. Diakouc,
I. Milonasb and
A. S. Dimitriadisa
a Department of Radiology, Greece
b Department of Neurology AHEPA Hospital, Medical School
c Laboratory of Parasitology & Parasitic Diseases, Veterinary School, Aristotele University of Thessaloniki, Greece
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FIG 1. Nonenhanced cranial CT scan obtained at admission shows multiple hypoattenuating lesions in the right frontal lobe and in both occipital lobes (arrowheads). Note the hyperattenuating center of the lesion in the right occipital lobe (arrow).
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FIG 2. MR images before treatment.
A, On this nonenhanced sagittal T1-weighted MR image, the occipital lesion appears hyperintense (arrowhead), whereas the frontal lesion is hypointense (arrow).
B, Axial FLAIR MR image shows multiple hyperintense lesions. The center of the right occipital lesion appears hypointense (arrowhead).
C and D, Axial (C) and coronal (D) contrast-enhanced T1-weighted MR images show marked contrast enhancement of the lesions. Note the area of parasagittal meningeal enhancement (arrow) on the right side, close to the frontal-lobe lesion.
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FIG 3. Follow-up axial MR images obtained 8 months after the initiation of treatment.
A, Nonenhanced T1-weighted image the right frontal lesion (arrowhead) shows signal intensity almost identical to that of the CSF. This finding indicates chronic gliotic changes.
B and C, Consequent contrast-enhanced T1-weighted images reveal the absence of enhancement.
D, Nonenhanced T1-weighted image at the convexity shows multiple, small, hyperintense cortical lesions due to cortical necrosis (arrowheads).
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