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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