Toxoplasmosis-Most common cause of non-viral encephalitis.
MC source is cat feces.
Most susceptible: AIDS, Leukemia patients or pregnant women
Signs of Toxoplasma encephalitis:
Children: hydrocephalus +mental retardation+focalneurological deficits
Adults – brain abscess with ring-enhanced brain lesions on CT
Diagnosis: Antibody test for toxoplasmosis
Morphology: Small comma-like tachyzoites and large polyorganismal cysts (bradyzoites) are seen in association with chronic inflammation, tissue necrosis and vasculitis.
Toxoplasmosis is the most common cause of multiple intracranial masses in AIDS patients
•Morphology: Small comma-like tachyzoites and large polyorganismal cysts (bradyzoites) are seen in association with chronic inflammation, tissue necrosis and vasculitis.
•Ring-enhanced brain lesions on CT
