Liver Injury Scale – Part 2
More severe blunt liver injuries are characterized as:
Grade III – a subcapsular (just below the surface) hematoma that is greater than 50% of the surface area or is expanding (growing larger) OR a ruptured subcapsular hematoma that is actively bleeding OR an intraparenchymal hematoma that is > 10 cm or is expanding OR a laceration that is > 3 cm in depth.
Grade IV – a ruptured intraparenchymal hematoma with active bleeding OR a parenchymal disruption involving 25-75% of a hepatic (liver) lobe or more than three Couinaud’s segments in a single lobe.
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