PMC5682885_01
(a) Diffusion-weighted image showing high signal intensity in bilateral cerebral peduncles, with corresponding hypointensity on apparent diffusion coefficient map (b). T1-weighted (c) magnetic resonance imaging showing low intensity in bilateral cerebral peduncles with sparing of the medial and most of the lateral portion with low signal intensity. The entire basilar and distal vertebral arteries (white arrow) are not shown on the magnetic resonance angiography (MRA) (d).
CRINM2017-9845917.001.jpg
PMC5682885_01_CRINM2017-9845917.001.jpg
fig1
Magnetic resonance imaging (MRI) of the brain performed 36 hours after the onset of symptoms revealed acute, bilateral, symmetric, cerebral peduncular infarcts (BCPI), which showed increased signal intensity on diffusion-weighted imaging (DWI) with low values on apparent diffusion coefficient (ADC) map (Figures 1(a) and 1(b)), in line with acute infarction. T1-weighted images (T1WI) demonstrated the lesion mainly involving the central portion of the cerebral peduncle with low signal intensity (Figure 1(c)). Magnetic resonance angiography (MRA) disclosed the vertebrobasilar artery occlusion and the absence of flow signals of bilateral PCA without collateral patency of the posterior communicating artery (Figure 1(d)).