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Thalamic Intracerebral Hemorrhage

A 52 year-old hypertensive man developed a headache, nausea and vomiting, associated with right sided numbness that slowly worsened over 30 minutes.

   Outline the Thalamic Blood                  Note the Isointense Signal on T1                  Note the Dark Signal on T2

Thalamic Intracerebral Hemorrhage: (Left) Axial CT scan; (Middle) T1-weighted axial MRI; (Right) T2-weighted axial MRI. On the CT scan (left image), note the bright signal in the left thalamus, indicating acute hemorrhage. On the T1-weighted image (middle scan), the abnormality is not well seen, as the signal is isointense. However, on the T2-weighted image (right scan), the signal is dark, representing deoxyhemoglobin. This is the MRI picture of an acute/subacute hemorrhage.

Revised 11/23/06.
Copyrighted 2006. David C Preston