Lesion type | MRI characteristics |
---|---|
I | T1: hyperintense core, T2: hyper- or hypointense core with surrounding hypointense rims |
II | T1: reticulated mixed signal core T2: reticulated mixed signal core with surrounding hypointense rim |
III | T1: iso- or hypointense T2: hypointense with a hypointense rim that magnifies the size of the lesion GE: hypointense with greater magnification than T2 images |
IV | T1: poorly seen or not visualized at all T2: poorly seen or not visualized at all GE: punctate hypointense lesions |