Marshall CT Classification (Traumatic Brain Injury)
Marshall CT classification for traumatic brain injury (Marshall 1991).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- High/mixed-density mass lesion > 25 cc
- None (diffuse injury — set the fields below)
- Any visible intracranial pathology
- Yes
- Midline shift > 5 mm
- Yes
Result: Marshall IV — Diffuse Injury IV (shift) — midline shift > 5 mm, no high/mixed-density mass lesion > 25 cc. Mortality highest of the diffuse categories.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Diffuse
- Diffuse Injury I (no pathology); II (cisterns present, shift ≤ 5 mm, no mass > 25 cc); III (cisterns compressed/absent, shift ≤ 5 mm); IV (shift > 5 mm).
- Mass lesion
- Evacuated Mass Lesion (V) — lesion surgically evacuated; Non-evacuated Mass Lesion (VI) — mass > 25 cc, not evacuated. Mortality rises across categories; complements the additive Rotterdam score.
What you enter
- High/mixed-density mass lesion > 25 cc
- Any visible intracranial pathology (diffuse injury)
- Basal cisterns compressed or absent
- Midline shift > 5 mm
How this is calculated
Marshall LF, Marshall SB, Klauber MR, et al. A new classification of head injury based on computerized tomography. J Neurosurg. 1991;75(Suppl):S14-S20. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.