Absolute criteria |
- Histological demonstration of the parasite from biopsy of a brain or spinal cord lesion
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- Visualization of subretinal cysticercus
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- Conclusive demonstration of a scolex within a cystic lesion* on neuroimaging study
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Neuroimaging criteria |
Major criteria: |
- Cystic lesion(s)* with no discernible scolex
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- Multilobulated cystic lesion(s) in the subarachnoid space.
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- Typical parenchymal brain calcification(s)Δ
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Confirmation criteria: |
- Resolution of cystic lesions after cysticidal drug therapy
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- Spontaneous resolution of single small enhancing lesions◊
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- Migration of ventricular cysts documented on sequential neuroimaging studies§
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Minor criteria: |
- Obstructive hydrocephalus or abnormal enhancement of basal leptomeninges
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Clinical/epidemiologic exposure criteria |
Major criteria: |
- Detection of specific anticysticercal antibodies or cysticercal antigens by well-standardized immunodiagnostic tests¥
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- Cysticercosis outside the central nervous system‡
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- Household contact with Taenia solium infection
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Minor criteria: |
- Clinical manifestations suggestive of neurocysticercosis†
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- Individuals with prior or current residence in an area where cysticercosis is endemic**
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