A 50 years old woman present with complaint of rapidly progressive cognitive decline for past 3 months. Her MRI is given below. Diagnosis is-
CJD: Coical/gyral hyperintensity which shows restriction on DWI. Variant CJD: - Hockey stick sign/pulvinar sign - hyperintensity involving medial thalamic nuclei Diffuse hypoxic injury - don't present as progressive cognitive decline. History of hypoxic event is present. Aery of percheron infarct causes bilateral paramedian thalamic involvement is usually characterised by a triad of altered mental status, veical gaze palsy, and memory impairment.
Diffuse hypoxic injury
CJD
MS
Aery of percheron infarct
Radiology Q Bank