AJNR -- Law et al. 25 (6): 997 Figure 1

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FIG 1. Images of a 58-year-old man (patient 5) with resection-proved PNET.

A, Contrast-enhanced axial view T1-weighted image (600/14/1) shows a fairly well-defined enhancing mass in the right frontal region. Approximately 70% of the lesion enhanced. Cystic/necrotic components can be seen in the lesion.

B, Axial view T2-weighted image (3400/119/1) shows some areas of hypointensity within the mass, with a small amount of peritumoral edema and mass effect.

C, Gradient-echo axial view perfusion MR image (1000/54) and rCBV color overlay map show increased perfusion with a high rCBV of 6.98 and vascular permeability (K^trans) of 0.00017 s^–1.