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Sagittal T1
Axial T1
Axial Gradient Echo
Axial T2
Axial FLAIR
Axial DWI
Axial ADC
MRI
Sagittal T1
Axial T1
Axial Gradient Echo
Axial T2
Axial FLAIR
Axial DWI
Axial ADC
Lesion of the quadrigeminal cistern, measuring approximately 13 x 7 x 12 mm, with high signal on T1W and T2W, low signal on FLAIR and GRE, no diffusion restriction, well-defined margins, with peripheral low signal on T1W and GRE (chemical shift artifact), and no significant mass effect. The remaining brain parenchyma is within normal limits.