Headache

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Symptoms of CNS infections is often only headache; it should be evaluated since many oppurtunistic infections possible

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Toxoplasma is the most common finding with patients presenting with headache, confusion and seizures

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CT shows classic single or multiple ring enhancing lesions

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Treatment is with pyrimethamine and sulfadiazine; life long maintenance medication is required

Other CNS lesions include, CNS lymphoma, Progressive multifocal leukoencephalopathy, Herpes simplex encephalitis, CMV encephalitis, Mycobacterial or fungal brain abscesses, cryptococcal meningitis