We describe the conventional MR imaging, perfusion MRI, proton MR

We describe the conventional MR imaging, perfusion MRI, proton MR spectroscopy (1H MRS), histopathology, immunohistochemistry, and chromosomal analysis in two cases of these tumors, with some features which have not been previously well described. Both tumor types demonstrated markedly elevated cerebral blood volume on perfusion MRI and had 1p19q chromosomal codeletions. Both tumor types showed an elevated Cho/Cr ratio, but extraventricular ganglioneurocytoma showed a preserved NAA/Cr ratio. These tumors should be considered in the differential diagnosis of intra-axial

brain tumors. “
“To report the brain imaging CX-5461 clinical trial features on magnetic resonance imaging (MRI) in inadvertent intrathecal gadolinium administration. A 67-year-old female with gadolinium encephalopathy from inadvertent high dose intrathecal gadolinium administration during an epidural steroid injection was studied with

multisequence 3T MRI. T1-weighted imaging shows pseudo-T2 appearance with diffusion of gadolinium into the brain parenchyma, olivary bodies, and membranous labyrinth. Nulling of cerebrospinal fluid (CSF) signal is absent PR-171 nmr on fluid attenuation recovery (FLAIR). Susceptibility-weighted imaging (SWI) demonstrates features similar to subarachnoid hemorrhage. CT may demonstrate a pseudo-cerebral edema pattern given the high attenuation characteristics of gadolinium. Intrathecal gadolinium demonstrates characteristic imaging features on MRI of the brain and may mimic subarachnoid hemorrhage on susceptibility-weighted imaging. Identifying high dose gadolinium within the CSF spaces on MRI is essential to avoid diagnostic and therapeutic errors. “
“Postpartum cerebral angiopathy mostly occurs in the large or medium-sized cerebral arteries. In this MCE case, we aimed to report a case of postpartum cerebral angiopathy presented as an asymmetrical penetrating arterial territory infarct with severe surrounding vasogenic edema. A 26-year-old woman admitted because of sudden headache after an attack of seizure. On initial computerized tomography

(CT), hypodense lesion in the right basal ganglia was observed. The diffusion-weighted image on 5th day revealed focal acute ischemic infarction with surrounding extensive vasogenic edema in right basal ganglia. The CT angiography showed multifocal arterial narrowing of intracranial cerebral arteries that completely resolved on the follow-up study. This case suggested that asymmetrical small penetrating arterial territory infarct can occur as an atypical presentation of postpartum cerebral angiopathy. “
“To describe a case of successful intracranial angioplasty and stenting of a symptomatic middle cerebral artery (MCA) stenosis using a transcervical approach. A 73-year-old woman presented with several ischemic strokes in the left MCA distribution.

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