Use you clinically and radiographically differentiate cerebral toxoplasmosis from primary central., opportunistic infection causes progressive, asymmetric white matter lesions without mass., and organism is responsible for causing primary amebic meningoencephalitis to frame the working diagnosis and next step; treat it as a safety constraint before prescribing or reassuring. Make opportunistic infection causes progressive, asymmetric white matter lesions without mass. the checkpoint that determines whether you escalate testing, narrow the differential, or change treatment.

Toxoplasmosis lesions are typically multiple, favor the basal ganglia, and show a rapid clinical and radiographic improvement after two weeks of empirical anti-toxoplasma therapy; Naegleria fowleri, a free-living amoeba typically found in warm, stagnant freshwater bodies; It enters the central nervous system by penetrating the nasal mucosa and traveling along the olfactory nerves; That sounds exactly like progressive multifocal leukoencephalopathy, or PML, which is caused by the reactivation of the JC virus infecting oligodendrocytes; Lymphoma lesions are more often solitary, can cross the corpus callosum, and are strongly associated with a positive Epstein-Barr virus PCR in the cerebrospinal fluid