Subdural hematoma classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

There are 3 classification system for subdural hematoma:

Subdural hematoma may be classified according to symptom onset and duration into 3 subtypes:
- Acute
- Subacute
- Chronic
Subdural hematoma may be classified according to midline shift and thickness into 4 subtypes:
- Type A: Thickness ≤ 1cm, midline shift ≤ 5 cm
- Type B: Thickness > 1cm, midline shift ≤ 5 cm
- Type C: Thickness > 1cm, midline shift > 5 cm
- Type D: Thickness ≤ 1cm, midline shift > 5 cm
Subdural hematoma may be classified according to imaging findings into 6 subtypes:
- Type 1
- Type 2
- Type 3
- Type 4
- Type 5
- Type 6