CT and MRI Features of Pediatric-Aged Colloid Cysts: Report of Two Cases

Figure 2

(a) Axial T2WI images: a well-defined, round, isointense lesion to the gray matter at the level of the foramen of Monro causing moderate acute hydrocephalus. (b, c) FlAIR and T1WI: the lesion is hyperintense relative to brain parenchyma. (d) GRE images: no drop of signal to indicate intralesional hemorrhage.

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