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Cerebral Edema

Last Updated: October 1, 2018

Figure 1: Lateral left frontal and temporal contusional edema is of low density on this CT image (top row left). FLAIR image (top row right) demonstrates the hyperintense edema in the lateral left frontal lobe and lateral left temporal lobe. The involvement of the cortex implies a component of cytotoxic edema, while white matter involvement may be either cytotoxic or vasogenic in etiology. Diffusion-weighted imaging (middle row left) demonstrates hyperintensity in a smaller region of the lateral left frontal lobe and lateral left temporal lobe. The ADC (Apparent diffusion coefficient) image (middle row right) shows a sizeable component of hyperintense vasogenic edema with a smaller component of low signal-intensity cytotoxic edema in the more superficial contusion of the lateral left fro...