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From: DailyQuestion@...Date: April 9, 2009 7:12:41 AM EDTTo: glennskow@...Subject: EMedHome Question of the Day
The EMedHome Question of the Day is:
You are evaluating a patient with the sudden onset of a severe headache and order a CT scan of the head. The radiologist's report makes note of the presence of a "delta sign". What is the significance of this finding?
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The Answer is:
The "delta sign" is the classic CT finding of cerebral venous thrombosis - a dense triangle within the superior sagittal sinus that is created by thrombosis within the sinus (JEM, 2/09, pg. 132-137).
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