Herpes encephalitis type 2 in a 2-week-old girl

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High-signal-intensity lesions on T2-weighted MR images

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Presentation transcript:

Herpes encephalitis type 2 in a 2-week-old girl Herpes encephalitis type 2 in a 2-week-old girl.A, T2-weighted image shows bilateral hyperintense lesions in the basal ganglia, thalami, and frontotemporal regions.B and C, DW images show asymmetric but extensive hyperintense lesions with decreased ADC in t... Herpes encephalitis type 2 in a 2-week-old girl.A, T2-weighted image shows bilateral hyperintense lesions in the basal ganglia, thalami, and frontotemporal regions.B and C, DW images show asymmetric but extensive hyperintense lesions with decreased ADC in these areas. This extensive distribution of the lesions is presumably related to vulnerability of the developing brain to excitotoxic injury. Toshio Moritani et al. AJNR Am J Neuroradiol 2005;26:216-228 ©2005 by American Society of Neuroradiology