Onion peel appearance of splenic capsle is seen in –
**Core Concept**
The onion peel appearance of the splenic capsule is a characteristic radiological finding associated with spleen injuries, particularly those caused by non-penetrating trauma. This appearance is due to the sequential layers of hemorrhage and fibrosis that form as the spleen heals.
**Why the Correct Answer is Right**
The onion peel appearance is a result of the body's attempt to repair the damaged splenic capsule. Each layer of the spleen's capsule is subjected to increasing pressure and blood flow, leading to the formation of a concentric, layered pattern of hemorrhage and fibrosis. This process can be visualized on imaging studies, such as CT scans or ultrasound, and is a key indicator of splenic injury.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the onion peel appearance of the splenic capsule.
* **Option B:** This option may be related to a different radiological finding, but it is not directly associated with the onion peel appearance.
* **Option C:** This option may be related to a different type of injury or condition, but it is not specifically associated with the onion peel appearance of the splenic capsule.
**Clinical Pearl / High-Yield Fact**
The onion peel appearance of the splenic capsule is a classic sign of splenic injury, particularly in the context of non-penetrating trauma. It is essential to recognize this finding in emergency radiology to avoid missing a potentially life-threatening condition.
**Correct Answer:** C. Splenic injury.