[Two autopsy cases of adult central nervous system toxoplasmosis: light and electron microscopic studies (author's...

Two autopsy cases of adult central nervous system toxoplasmosis were reported. Two cases treated with immunosuppressive agents and corticosteroids under a diagnosis of Hodgkin's disease were considered to be an acquired CNS toxoplasmosis associated with the underlying diseases. The first case, a 73 year old woman with Hodgkin's disease, showed toxoplasma lesions in the cerebrum. The second case, a 22 year old man with pulmonary tuberculosis, showed toxoplasma lesions in the cerebrum, basal ganglion, thalamus, cerebellum, pons, and medulla oblongatta. Each toxoplasma lesion showed small hemonecrotic softening. Toxoplasma cysts were seen around the hemonecrotic lesion. Encysted toxoplasma organisms were examined in detail with electron microscope.