Lesion with intact skin but tearing of subcutaneous tissue is: March 2005
First, I need to recall different types of skin lesions and their characteristics. Intact skin suggests that the epidermis is still present. Subcutaneous tissue tearing implies damage to the deeper layers, like the dermis and subcutaneous fat, but the skin surface isn't broken.
Abrasions typically involve scraping off the epidermis, so that's not it. Contusions are bruises without skin break, so maybe that's possible? Wait, but contusions are about blood vessels rupturing, not tissue tearing.
Then there's a term like "avulsion," which is a type of wound where skin and underlying tissue are torn away. But the question says the skin is intact, so maybe not avulsion.
Hmm, maybe "contusion" is a distractor. Another possibility is "laceration," but lacerations usually have torn skin. Wait, the question says skin is intact. So maybe the answer is a "contusion" but that's a bruise. Wait, maybe "hematoma"? No, that's a collection of blood.
Wait, another thought: a "tear" in subcutaneous tissue without breaking the skin. Maybe "subcutaneous tissue injury" without skin breach. But what's the specific term? Maybe "contusion" is the answer here. Or "ecchymosis"? No, ecchymosis is a bruise.
Alternatively, there's a term called "abrasion" but that's skin scraped off. Maybe "incised wound"? No, that's a cut.
Wait, the question is about subcutaneous tissue tearing with intact skin. Maybe "contusion" is the answer. Because in a contusion, the skin is intact, and the trauma causes capillaries to rupture in the subcutaneous tissue, leading to bruising. So the tearing of subcutaneous tissue would be part of that.
Alternatively, maybe "hematoma" is the term, but hematoma is a collection of blood. But the question is about tissue tearing, not just blood accumulation.
So the correct answer is likely a contusion. Let me check. Contusion is a type of closed injury where there's damage to the underlying tissues without breaking the skin. The subcutaneous tissue is torn or damaged, leading to bruising. So that fits the description.
The other options would be abrasion (skin removed), laceration (torn skin), incision (cut with sharp object), and avulsion (tissue torn away). So the correct answer here is contusion. Therefore, the answer is the option that states contusion.
**Core Concept**
The question assesses classification of traumatic skin lesions based on tissue involvement. A lesion with **intact epidermis** and **torn subcutaneous tissue** indicates a **contusion**, which is a closed injury without skin break. Key terms include subcutaneous tissue damage, intact skin, and non-penetrating trauma.
**Why the Correct Answer is Right**
A **contusion** (bruise) results from blunt trauma causing capillary rupture and hemorrhage into sub