Chronic long-standing headache due to neurocysticercosis.

A 35-year-old Chinese woman presented with a 26-year history of persistent headache, relieved only by diuretics. Characteristic CT findings, peripheral eosinophilia, lymphocytic CSF pleocytosis, elevated CSF IgG, positive oligoclonal bands, antibody-positive ELISA, and Western blot results with Taenia solium antigen, and a favorable response to albendazole led to the diagnosis of neurocysticercosis.