The American Association for the Study of Trauma has classified pancreatic injury into five grades depending on the severity and location of parenchymal and duct disruption. They are:
Grade 1 – superficial laceration to gland without duct injury or small hematoma in gland without duct injury
Grade 2 – major laceration to gland without duct injury or large hematoma in gland without duct injury
Grade 3 – parenchymal laceration with duct injury or distal transection
Grade 4 – parenchymal laceration involving the ampulla of Vater or proximal transection
Grade 5 – massive disruption or obliteration of pancreatic head
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