Abstract:
:We herein report a 12-year-old girl with a basal ganglia germinoma who presented with right-sided hemiparesis after a minor head trauma. Magnetic resonance (MR) imaging revealed a minimally enhanced lesion involving the left putamen, thalamus, and corona radiata. The lesion showed low-signal intensity on T1-, and high intensity on T2- and diffusion-weighted imaging. The MR signal in the adjacent globus pallidum was also low on T2-weighted imaging. MR spectroscopy on the lesion showed a large lactate/lipid/macromolecule peak with a decreased NAA/Cr ratio, but no increase in the Cho/Cr ratio. However, posttraumatic infarction at the territory of lateral lenticulostriate artery was ruled out 1 month later. This was based on progression of the hemiparesis and neuroimaging results, including an increased Cho/Cr ratio and weak uptake on (11)C-methionine positron emission tomography of the basal ganglia lesion. Stereotaxic brain biopsy confirmed the diagnosis of germinoma.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Fujii Y,Saito Y,Ogawa T,Fujii S,Kamitani H,Kondo S,Horie Y,Togawa M,Senda M,Maegaki Y,Ohno Kdoi
10.1016/j.jns.2008.02.006subject
Has Abstractpub_date
2008-07-15 00:00:00pages
189-93issue
1-2eissn
0022-510Xissn
1878-5883pii
S0022-510X(08)00083-Xjournal_volume
270pub_type
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