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Table 2 Marshall CT scale of traumatic brain injury

From: Prediction of early mortality after primary decompressive craniectomy in patients with severe traumatic brain injury

Scale CT findings
Category I No visible intracranial pathology
Category II Midline shift of 0 to 5 mm
Basal cisterns remain visible
No high or mixed density lesions >25 cm3
Category III Midline shift of 0 to 5 mm
Basal cisterns compressed or completely effaced
No high or mixed density lesions > 25 cm3
Category IV Midline shift > 5 mm
No high or mixed density lesions > 25 cm3
Category V Any lesion evacuated surgically
Category VI High or mixed density lesions > 25 cm3
Not surgically evacuated