Question:
An auto-rickshaw ran over a child's thigh, leaving a mark of the tyre tracks. This is a
An auto-rickshaw ran over a child's thigh, leaving a mark of the tyre tracks. This is a
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A bruise that reproduces the exact shape of the impacting object has a special name.
Updated On: Jun 24, 2026
- Contact bruise
- Patterned bruise
- Imprint abrasion
- Pressure bruise
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The Correct Option is B
Solution and Explanation
Step 1: Note the key finding in the stem: the impact of the tyre reproduces the tread pattern of the tyre as a mark on the skin.
Step 2: A patterned bruise (also called an imprint or stamp bruise) is a contusion in which the shape of the impacting object is reproduced on the skin. The blood is forced away from the area of direct contact and into the surrounding tissues, so the pattern of the object, such as a tyre tread, belt buckle or weapon, becomes visible.
Step 3: When a tyre runs over a limb, the raised portions of the tread compress the skin and the intervening grooves allow blood to accumulate, producing parallel lines that mirror the tyre tread. This makes it a patterned (tread) bruise.
Step 4: Rule out the distractors. A contact bruise is a non-specific term and does not emphasise reproduction of a pattern. An imprint abrasion involves the superficial epidermis being scraped to reproduce a pattern, but the stem describes a bruise (contusion) rather than an abrasion. A pressure bruise refers to contusions from sustained pressure, as in throttling, not from a moving wheel reproducing a tread.
Conclusion: The tyre track mark is a patterned bruise, so the correct answer is option 2.
Step 2: A patterned bruise (also called an imprint or stamp bruise) is a contusion in which the shape of the impacting object is reproduced on the skin. The blood is forced away from the area of direct contact and into the surrounding tissues, so the pattern of the object, such as a tyre tread, belt buckle or weapon, becomes visible.
Step 3: When a tyre runs over a limb, the raised portions of the tread compress the skin and the intervening grooves allow blood to accumulate, producing parallel lines that mirror the tyre tread. This makes it a patterned (tread) bruise.
Step 4: Rule out the distractors. A contact bruise is a non-specific term and does not emphasise reproduction of a pattern. An imprint abrasion involves the superficial epidermis being scraped to reproduce a pattern, but the stem describes a bruise (contusion) rather than an abrasion. A pressure bruise refers to contusions from sustained pressure, as in throttling, not from a moving wheel reproducing a tread.
Conclusion: The tyre track mark is a patterned bruise, so the correct answer is option 2.
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