Parkinsonian symptoms as an initial manifestation in a Japanese patient with acquired immunodeficiency syndrome and Toxoplasma infection

We studied a Japanese patient who developed parkinsonian symptoms over 3 mo nths before the diagnosis of acquired immunodeficiency syndrome. Brain MRI showed multiple lesions with mass effect and ring enhancement in the basal ganglia and subcortical white matter suggesting Toxoplasma infection. Anti- Toxoplasma therapy and highly active antiretroviral therapy for 6 months al lowed improvement of parkinsonism, brain MRI findings, and immune system.