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Central Nervous System Infections

Viral Encephalitis

Herpes simplex encephalitis Viral encephalitis is a serious neurological disorder associated with relatively poor outcome. Herpes simplex virus (HSV) encephalitis is the most common causative agent for viral encephalitis. More than 95% of HSV encephalitis is caused by HSV type 1. HSV 1 is transmitted primarily ...

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Cerebral Abscess

The scans shown are from two immunocompromised patients who presented with high fever and recurrent seizures. The contrast cranial CT of the first patient shows that the patient had a rim-enhancing lesion at the left basal ganglia (Figure 1). A set of cranial MRIs of the ...

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Toxoplasmosis

The set of cranial MRI (coronal cuts) shown here are from a patient presenting with fever and confusion. Multiple, ring-enhancing nodular lesions are noted in the FLAIR sequence (Figures 1 and 2) as well as in the T1W imaging with contrast (Figures 3 and 4). ...

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Creutzfeld-Jakob Disease

Creutzfeld-Jakob Disease (CJD) are prion diseases and can be subdivided into sporadic (account for 85% of cases), genetic (15% of cases) and acquired forms (<1% cases). CJD is rare with an incidence of 1-1.5 per million population per year with a peak age of onset of 55-75years. It is a common cause of ...

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