Intracranial Cysts: An Imagery Diagnostic Challenge
Cisterna ambiens arachnoidian cyst. (a) Round-ovalar, homogeneous, well-demarcated, hyperintense lesion with signal similar with CSF revealed by T2-weighted MRI image. (b) Round-ovalar, well-demarcated, hypointense cystic lesion with signal similar to CSF revealed by FLAIR MRI sequence. (c) Round-ovalar, homogeneous, well-demarcated, hypointense lesion with signal similar to CSF revealed by T1-weighted MRI image. Department of Neurology, Colentina Clinical Hospital brain imaging archive.
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