Figure 2.

A 61-year-old woman with endometrial cancer and new headache. T1-weighted MRI without (a) and with (b) contrast demonstrates a ring enhancing lesion causing mass effect on the fourth ventricle (arrowhead). FLAIR sequence shows surrounding vasogenic edema (c) and enlarged lateral ventricles (d) without transependymal CSF flow to indicate acute hydrocephalus. A second enhancing lesion within the pons (e, T1; f, T1 postcontrast, arrows) was presumed metastatic, and the patient was treated with whole brain irradiation. Pathologic evaluation of the cerebellar mass confirmed endometrial cancer