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Figure 1 | Journal of Medical Case Reports

Figure 1

From: Marathon related death due to brainstem herniation in rehydration-related hyponatraemia: a case report

Figure 1

CT brain scan signs of hydrocephalus, high intracranial pressure and brain stem herniation. Brain CT (axial slices) in a male patient in his 30's who died of brain stem herniation after completing a marathon. The CT shows (A) loss of the rostral cerebral sulci suggesting increase in ICP, (B) and (C) a large hydrocephalus with widening of both temporal horns. The grey matter can still be differentiated from the white matter, but all sulci are lost. This suggests that the brain oedema is of relative recent onset and massive tissue ischaemia has not yet occurred. (D) Compression of the fourth ventricle with dilatation of the third ventricle and the caudal aspect of both temporal horns. This is observed with considerable brain oedema and obstructive hydrocephalus. (E) Herniation of the medulla and pons into the foramen magnum. (F) The tonsils are located at the level of the dens which is a good indicator for foramen magnum herniation. (All images are from the case presented here).

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