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Figure 1: Magnetic resonance imaging sequences of the patient in Case 1. Magnetic resonance imaging T2 fluid-attenuated inversion recovery hyperintensities involving left dorsomedial thalamus, caudate, and lentiform nucleus with mild mass effect; hyperintensity of the left superior frontal gyrus (a and b). T1 images showing corresponding hypointensity (c). Diffusion-weighted images and apparent diffusion coefficient sequences (d and e) showing only patchy diffusion restriction. Maximum intensity projection showing hypodensity over left frontal convexity suggesting a left frontal cortical venous thrombosis (f)

Figure 1: Magnetic resonance imaging sequences of the patient in Case 1. Magnetic resonance imaging T2 fluid-attenuated inversion recovery hyperintensities involving left dorsomedial thalamus, caudate, and lentiform nucleus with mild mass effect; hyperintensity of the left superior frontal gyrus (a and b). T1 images showing corresponding hypointensity (c). Diffusion-weighted images and apparent diffusion coefficient sequences (d and e) showing only patchy diffusion restriction. Maximum intensity projection showing hypodensity over left frontal convexity suggesting a left frontal cortical venous thrombosis (f)