Abstract
Cerebral toxoplasmosis commonly affects patients with advanced HIV infection. Toxoplasmosis can be severe and debilitating in patients with Central Nervous System (CNS) involvement and the condition may be fatal in patients if not suspected and treated early and adequately. Hence, imaging plays an important role in diagnosis and following during treatment in cases of suspected toxoplasmosis. We report a case of a 51-years-old man who was a known sero-positive since 2 years and presented with altered sensorium. Magnetic Resonance Imaging (MRI) scan of the brain showed multiple heterogeneously enhancing lesions in bilateral cerebral as well as cerebellar hemispheres and some of them showed eccentric target sign. MR spectroscopy showed features of reduced NAA, mildly increased choline, and lipid lactate peak. MR perfusion study showed reduced perfusion favoring diagnosis of cerebellar toxoplasmosis. Patient was started on a combination of pyrimethamine plus sulfadiazine for toxoplasmosis. Follow up MRI after 20 days and 45 days from start of treatment showed significant resolution of the lesions supporting our radiological diagnosis.
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