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FIG 5. MR images of an aggressive astroblastoma in a 15-year-old female patient (patient 6).
A, Sagittal T1-weighted image (810/14/1) shows an aggressive mass that has invaded the anterior body of the corpus callosum (arrowhead).
B, Axial T2-weighted image (5000/93/1) shows the lesion to have slightly higher T2 signal intensity than that typically seen with an astroblastoma, and the mass appears centered within the anterior horn of the left lateral ventricle (arrow), suggesting the diagnosis of ependymoma.
C, Coronal postcontrast T1-weighted image (950/14/1) depicts heterogeneous enhancement of the solid portion (arrowhead) and rim enhancement around the cystic portion (arrow). The tumor was a malignant astroblastoma.
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