**Core Concept**
Inferior rib notching is a radiological finding characterized by the erosion or thinning of the inferior border of the ribs, typically seen on chest X-rays. This phenomenon is often associated with vascular or other systemic diseases that lead to the enlargement and erosion of the intercostal vessels.

**Why the Correct Answer is Right**
Inferior rib notching is commonly seen in conditions that cause the intercostal vessels to become dilated and eroded. This includes diseases such as aortic coarctation, where the narrowing of the aortic isthmus leads to increased blood flow through the intercostal arteries, resulting in their enlargement and subsequent erosion of the adjacent ribs. Other conditions that may cause inferior rib notching include osteoporosis, scurvy, and metastatic disease.

**Why Each Wrong Option is Incorrect**
* **Option A:** **Tuberous Sclerosis Complex** - This genetic disorder can cause a variety of systemic manifestations, including renal angiomyolipomas, which may lead to inferior rib notching due to the erosion of the intercostal vessels by the enlarged vessels.
* **Option B:** **Fibrous Dysplasia** - This condition can cause bone lesions that may lead to inferior rib notching, although it is not as commonly associated with this finding as aortic coarctation.
* **Option C:** **Sickle Cell Disease** - This condition can cause vascular damage and lead to inferior rib notching, although it is not as commonly associated with this finding as aortic coarctation.

**Clinical Pearl / High-Yield Fact**
Inferior rib notching is often a sign of a systemic disease, rather than a localized process. When interpreting chest X-rays, it is essential to consider the patient's overall clinical context and medical history to determine the underlying cause of this radiological finding.

**Correct Answer:** D