TABLE 1.

Diagnostic criteria for neurocysticercosisa

Criterion
Absolute
    Histologic demonstration of the parasite from biopsy of a brain or spinal cord lesion
    Cystic lesions showing the scolex on CT or MRI
    Direct visualization of subretinal parasites by fundoscopic examination
Major
    Lesions highly suggestive of neurocysticercosis on neuroimaging studies
    Positive serum immunoblot for the detection of anticysticercal antibodies
    Resolution of intracranial cystic lesions after therapy with albendazole or praziquantel
    Spontaneous resolution of small single enhancing lesions
Minor
    Lesions compatible with neurocysticercosis on neuroimaging studies
    Clinical manifestations suggestive of neurocysticercosis
    Positive CSF ELISA for detection of anticysticercal antibodies or cysticercal antigens
    Cysticercosis outside the central nervous system
Epidemiologic
    Evidence of a household contact with T. solium infection
    Individuals coming from or living in an area where cysticercosis is endemic
    History of frequent travel to disease-endemic areas
  • a CSF, cerebrospinal fluid; ELISA, enzyme-linked immunosorbent assay.