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Remote Intracerebral Hemorrhage - Case 4

A 59 year-old man was evaluated for headaches. There was a history of an automobile accident ten years earlier, during which time he was in a coma for several days.

Note the Dark Signal on T1               Note the Dark Signal on T2               Note the Cystic Area

Remote Intracerebral Hemorrhage: (Left) T1-weighted axial MRI; (Right) T2-weighted axial MRI. Note the lesion in the right anterior frontal area that is dark on both T1- and T2-weighted images. This picture is consistent with hemosiderin, the residual from old blood. On the T2-weighted images, there is a small cystic area that is bright. In this case, the hemorrhage was due to trauma. To learn more, review the powerpoint slide show, Blood on MRI: Time-dependent Changes.

Revised 11/29/06.
Copyrighted 2006. David C Preston.