Sexually transmitted diseases
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To describe clinical and laboratory features of human immunodeficiency infection (HIV)-infected patients with neurosyphilis. ⋯ Most patients had early and asymptomatic neurosyphilis, and more than one third had early syphilis. Patients with symptomatic neurosyphilis showed lower CD4 T cell counts and higher protein concentration on CSF than those asymptomatic. Most patients had serum VDRL titers > or =1:16, regardless of syphilis stage.