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Clinical History:
44-year-old man presented with on and off headache for 1 year. Ventricular drainage catheter was inserted by neurosurgeon as bilateral papilledema noted. CSF cytology & culture were both negative. No primary tumor or skin pigmentation was identified.
CT (plain) & MRI were performed as part of workup. (axial T1, axial T2, axial T1 post-Gd)
CT Brain (Plain)
MRI T1W
MRI T2W
MRI Post-Gd T1W