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Representative examples of different enhancement patterns. (A) homogenous; (B) heterogenous; (C) patchy and diffuse; (D) cotton-ball; (E) nodular; (F) punctate; (G) open ring; (H) multiple closed rings; (I) multiple T2 hypointense rims co-localize with ring enhancement (arrows; T2W MRI). (A–H) T1W MRI + Gd.
