Teaching neuroimages: vein of Galen aneurysm mimicking pineal mass in a young adult.
A 22-year-old man presented with intractable progressive headaches over 2 months. Noncontrast head CT and contrast-enhanced MRI scan revealed a hyperdense pineal-based mass (figure, A and B). Arteriogram was normal (figure, C and D).
Gokhale, S; Laskowitz, DT
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