Fig. 1
From: Sudden onset of sleep caused by hypothalamic infarction: a case report
Brain MRI of the patient. Diffusion-weighted (a) and fluid-attenuated inversion recovery MRI images (b, c) obtained on admission reveal a small, high-signal intensity restricted to the left hypothalamus (arrowheads). Sagittal fluid-attenuated inversion recovery MRI shows involvement of the posterior part of the hypothalamus (f, arrowhead). Follow-up MRI after 3 months shows unremarkable findings on diffusion-weighted images (d) and reduced intensity of the hypothalamic lesion on fluid-attenuated inversion recovery MRI images (e) (arrowhead)