• Close up of a penetrating wound of the liver.
• Note the stellate wound due to the entry of a high velocity projectile.
• Transmission of kinetic energy to tissue; force equals 1/2 the product of mass and velocity squared.
• Injury depends on how much force is applied over how much area to what kind of tissue.
• Energy from the bullet will be spread along its path, not just at the entry point
• Epidemic problem in the U.S. with >30,000 deaths/annum
• Particular problem in children (accidental deaths) and young adults (homicide)
•Can be lethal.
|General Gross Description|
•Bullet wounds cause entrance and exit wounds.
•The entrance wound is usually smaller than the exit wound, and smaller than the caliber of the bullet.
|General Micro Description|
•Histologically, the wounds are characterized by laceration and destruction of tissue and significant hemorrhage.
• Cotran RS, Kumar V, Robbins SL. Robbins Pathologic Basis of Disease. 5th edition. W.B. Saunders; Philadelphia. 1994. p. 399.
• Pathology, 2nd edition: Rubin E, Farber JL (eds). Philadelphia, J.B. Lippincott, 1994, pp. 318-319.