Table 1 Breast injury clasification

Grade 1

Mild crush injury consisting of bruising, ecchymosis, skin blistering, breast swelling, tenderness, friction burns over contact area.

Grade 2

Moderate crush injury consisting of intramammary hematoma, fat necrosis, skin avulsion or loss, skin laceration, skin ulcer

Grade 3

Severe crush injury consisting of subcutaneous partial or complete transection of the breast resulting in a permanent diagonal furrow across the breast corresponding to the line of the seat belt that cleaved the breast tissue into two parts

Grade 4

Avulsion breast injury consisting of subcutaneous avulsion of the breast from the chest wall with rupture of perforating branches of intercostal vessels, active bleeding into the breast and the space between the breast and chest wall caused by the traumatic shearing force