Not a radiological feature of rickets –
**Core Concept**
Rickets is a disease in children caused by vitamin D deficiency, leading to softening and weakening of bones. It results from impaired bone mineralization, which can be due to various factors including nutritional deficiencies, genetic disorders, or other medical conditions.
**Why the Correct Answer is Right**
Rickets typically presents with several characteristic radiological features, including:
- Widening of the growth plates (physis)
- Triradiate cartilage not yet fused
- Cupping and fraying of the metaphyses
- Bowing of the long bones
- Craniotabes (softening of the skull bones)
However, some features are not typically seen in rickets.
**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because it is a common radiological feature of rickets.
**Option B:**
This option is incorrect because it is indeed a characteristic finding in rickets, often seen in the skull.
**Option C:**
This option is incorrect because it is a common feature of rickets, which can lead to an increased risk of fractures.
**Clinical Pearl / High-Yield Fact**
It is essential to recognize that rickets can present with a wide range of radiological features, and a thorough understanding of these signs is crucial for accurate diagnosis.
**Correct Answer:** D.