6 - Wounds Part3

6 - Wounds Part3 - Done by : Ahmed K. Shammari Types &...

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Done by : Ahmed K. Shammari
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Types & patterns of bruises
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Implement marks High velocity impact causing a rim of petechiae outlining the pattern of the inflicting instrument. E.g. parallel sided marks for sticks >> “tramline bruising” Mechanism: it is caused by the impact of a cylindrical solid subject (e.g. baseball bat). The strike of the cylinder expels blood from the center into small vessels, either side of the point of impact, which rupture and extravasate blood. Is a specific of bruising represented by 2 linear bruises with a line sparing between them centrally.
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Higher velocity impact causes bruising underlying the injury in the shape of the object used. E.g. wedge-shaped bruises from kicks with shoes. Demonstrates a right flank bruise in a 60-year-old man who died of an acute MI 20 minutes after being hit with a baseball at a game. Illustrates a densely hemorrhagic nature of the affected area and the distinct margins between the affected and normal areas.
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Pressure necrosis of the skin from ligatures, causing well-demarcated bands partially or fully encircling limbs or the neck.
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Types and patterns Implement marks Coarse speckled (intradermal) bruises
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This note was uploaded on 12/21/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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6 - Wounds Part3 - Done by : Ahmed K. Shammari Types &...

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