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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: J Neurosurg. 2019 Jul 1;131(1):1–13. doi: 10.3171/2019.3.JNS181724

FIG. 2.

FIG. 2.

MRI features of CA. A: MRI features of a solitary CA at the floor of the 4th ventricle, clustered around a developmental venous anomaly traversing the pons. B: Autosomal dominant familial multifocal CAs, including punctate lesions on SWI, which are not seen on conventional (T2 and GRE-weighted) sequences. C: Pontine CA with the characteristic features of symptomatic hemorrhage, with acute blood expanding the lesion with a surrounding fluid-attenuated inversion recovery (FLAIR) signal of edema (left). T1+C = contrast-enhanced T1-weighted image.