Bevelling of the skull is seen in the following:
**Core Concept**
Bevelling of the skull refers to the phenomenon where the inner table of the skull is more damaged than the outer table, or vice versa, typically seen in **gunshot wounds**. This occurs due to the **kinetic energy transfer** from the projectile to the skull. The direction and type of bevelling can provide clues about the trajectory of the projectile.
**Why the Correct Answer is Right**
The correct answer choice is related to the type of injury that causes bevelling, which is typically associated with **high-velocity projectiles**. The bevelling effect is a result of the **expansion of gases** and the **transfer of kinetic energy** from the projectile to the surrounding bone tissue. This leads to a characteristic pattern of damage, with the inner table often being more severely damaged in **entrance wounds**.
**Why Each Wrong Option is Incorrect**
**Option A:** This choice is incorrect because bevelling is not typically seen in this type of injury.
**Option B:** This choice is also incorrect as it does not typically result in bevelling of the skull.
**Option C:** This option is incorrect because it is not directly related to the phenomenon of bevelling.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the direction of bevelling can help determine the **entry and exit points** of a projectile, which is crucial in **forensic pathology**. Bevelling can also be seen in other types of **penetrating trauma**.
**Correct Answer:** D. Gunshot wounds.