Organ Injury Scaling - Spleen

Grade	Injury Description		AIS-90
I	Haematoma	Subcapsular, <10% surface area	2
	Laceration	Capsular tear, <1cm parenchymal depth	2

II	Haematoma	Subcapsular, 10-50% surface area Intraparenchymal, <5cm diameter	2
	Laceration	1-3cm parenchymal depth not involving a parenchymal vessel	2

III	Haematoma	Subcapsular, >50% surface area or expanding. Ruptured subcapsular or parenchymal haematoma. Intraparencymal haematoma >5cm	3
	Laceration	>3cm parenchymal depth or involving trabecular vessels	3

IV	Laceration	Laceration of segmental or hilar vessels producing major devascularization (>25% of spleen)	4

V	Laceration	Completely shattered spleen	5
	Vascular	Hilar vascular injury which devascularized spleen	5

Advance one grade for multiple injuries to same organ up to Grade III.

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