Right frontal PXA in a 4.5-year-old girl (patient number 5). A, Sagittal T1-weighted image shows multiple cystic components with hyperintense fluid within a cyst. The crescentic hyperintense fluid corresponds to blood on CT, HU = +77 (B). C, Coronal T2-weighted image shows the lateral solid components and focal scalloping of the overlying inner table (arrows). D, Axial FLAIR image shows marked vasogenic edema. E, Gadolinium-enhanced coronal T1-weighted image shows intense enhancement of the lateral solid components. F and G, Axial diffusion-weighted image and ADC map show that the solid component shows reduced diffusion compared with normal brain (ADC ratio = 0.85).