Hypoxic Ischemic Brain Injury



Hypoxic Ischemic Brain Injury


Shaun R. Wagner



CLINICAL HISTORY

5-year old girl with panhypopituitarism and a recent history of viral illness was found unresponsive by parents, with wet vomitus around her mouth. Paramedics initiated cardiopulmonary resuscitation at the scene.






Figure 25A






Figure 25B






Figure 25C






Figure 25D



FINDINGS

Figure 25A: Axial noncontrast CT images through the brain at the level of the foramen of Monro demonstrates diffuse cerebral edema with loss of the normal gray matter-white matter discrimination. There is relative hyperintensity of the cerebellum juxtaposed against the low-density edematous cerebral hemispheres, the so-called “white cerebellum sign.” Figure 25B: Axial FLAIR image obtained 4 days later at the level of the foramen of Monro demonstrates bilateral hyperintensity of the lentiform nuclei and diffuse cortical hyperintensity, particularly at the occipital lobes. Additionally, there is diffuse thickening of the cortex and effacement of the sulci. Figures 25C and 25D: Axial diffusion-weighted imaging (DWI) (Fig. 25C) and corresponding apparent diffusion coefficient (ADC) map (Fig. 25D) images at the level of the foramen of Monro demonstrate symmetric restricted diffusion throughout the cortex and basal ganglia. The ADC map demonstrates hypointensity in the regions of high signal intensity on DWI, consistent with diffusion restriction.

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Aug 1, 2016 | Posted by in NEUROLOGICAL IMAGING | Comments Off on Hypoxic Ischemic Brain Injury

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