Progressive Headache rebellious to therapy in young woman. No other symptoms. An examination CT without contrast medium reveals a expansive lesion into the right lateral ventricle that appears dilated.
"Bubbly" mass in the lateral ventricle, attached to septum pellucidum, near foramen of Monro, through which extend into 3rd ventricle.T1C+: Moderate heterogeneous enhancement
Subependymoma. Subependymal giant cell astrocytoma.