Fig. 4From: Autopsy case of acute pulmonary thromboembolism with neurosyphilisHistological images of the brain. Lymphocyte infiltration into the perivascular space of the brain tissue. B cells were the dominant component of the lymphocyte infiltrates. a Hematoxylin and eosin staining. b Immunohistochemistry for CD20. c Immunohistochemistry for CD3Back to article page