Intraventricular metastasis from renal cell carcinoma
Middle aged female with increasing headaches.
Pre-operative planning MRI
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Lobulated lesion within the body of the right lateral ventricle, inseparable from the septum pellucidum, which has high T2/FLAIR signal with low signal rim and is isointense to grey matter T1 signal. There is mild hydrocephalus. Periventricular hyperintensity in the right peritrigonal region is consistent with transpendymal edema.
Limited sequences were performed for this pre-operative study. The favored imaging diagnosis was central neurocytoma. Histopathology however concluded that this was metastatic renal cell carcinoma.
Further questioning revealed a history of nephrectomy for RCC several years ago.