A rickshaw tyre passed on a 8 year old child. Tyre marks were found on the body. This is an exmaple of :
**Core Concept**
In forensic medicine, tyre marks or abrasions on the body are indicative of a specific type of injury, which can be used as evidence in cases of assault or accidents. This type of injury is caused by friction between the tyre and the skin, resulting in a characteristic pattern of marks or abrasions.
**Why the Correct Answer is Right**
The correct answer is related to the pattern of injury caused by the tyre marks. When a tyre passes over the skin, it creates a linear or curvilinear abrasion, often with a characteristic "brushed" or "scratched" appearance. This type of injury is commonly seen in cases of assault or accidents involving vehicles. The mechanism of injury involves friction between the tyre and the skin, which can cause damage to the superficial layers of the skin, leading to the characteristic marks.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not describe the type of injury caused by tyre marks.
**Option B:** This option is incorrect because it is not related to the pattern of injury caused by tyre marks.
**Option C:** This option is incorrect because it is not specific to the type of injury caused by tyre marks.
**Clinical Pearl / High-Yield Fact**
In forensic medicine, tyre marks can be an important piece of evidence in cases of assault or accidents. It is essential to carefully document and photograph the tyre marks, as they can provide valuable information about the circumstances of the incident.
**Correct Answer: C. Contusion.**