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Figure 1a: Transverse T1-weighted SE MR images (467/8) in 77-year-old man with large intraventicular enhancing tumor extending into surrounding brain parenchyma after administration of 0.1 mmol/kg of (a) gadopentetate and (b) gadobenate. Whereas the lesion (arrows) is clearly visible with gadopentetate, markedly improved definition of lesion borders that better defines extension of tumor into the adjacent right thalamus, splenium, and lingual regions is achieved with gadobenate. Histologic evaluation of surgical specimen confirmed glioblastoma multiforme.
