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FIG 2. DNT involving the occipital lobe and presenting hemorrhagic changes (case 7).
A, On CT scan, the lesion appears of low attenuation and shows a nodular enhancement after contrast injection.
B and C, On transverse (B) and sagittal (C) T1-weighted MR images, the DNT is of low signal intensity, displays septations, but shows three areas of hyperintensity after gadolinium injection, mimicking a glioma.
D, Transverse T2-weighted MR image shows the absence of edema and mass effect on median structure.
E, Marked nuclear atypias can be observed in the glial areas of DNT (hematoxylin phloxin-saffron, magnification x200).
F, An oligodendroglioma-like area showing major hemorrhagic changes characterized by numerous hemosiderin-laden histiocytes (hematoxylin phloxin-saffron, magnification x200).
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