Figure 3. Meningioma after acute lymphoblastic leukemia in a 17-year-old girl who presented with headaches. The patient had undergone chemotherapy and craniospinal irradiation at 2 years of age. Coronal contrast-enhanced T1-weighted MR image demonstrates a posterior fossa mass. The tumor was resected, and no residual or recurrent meningioma was seen at follow-up MR imaging.