## Core Concept
Fractures of the base of the skull are serious injuries that can have significant complications. They often result from high-energy trauma and can be associated with damage to cranial nerves, blood vessels, and the brain. The base of the skull is a complex structure with multiple foramina through which vital structures pass.

## Why the Correct Answer is Right
The correct answer, which is not explicitly provided, needs to be evaluated based on common facts about base of skull fractures. Typically, base of skull fractures can lead to complications such as cerebrospinal fluid (CSF) leaks, meningitis, and damage to cranial nerves. The specifics of why the correct answer is right will depend on the details of the options provided.

## Why Each Wrong Option is Incorrect
Given that the options (A, B, C, D) are not specified, let's hypothetically analyze:
- **Option A:** If this option states a known complication or characteristic of base of skull fractures (e.g., CSF leak), it would be incorrect to label it as an "except" if it's a true statement.
- **Option B:** Similarly, if this option describes a recognized feature or consequence of such fractures, it would not be the "except."
- **Option C:** If this option presents a fact that is not universally accepted or is incorrect regarding base of skull fractures, it could potentially be the "except."
- **Option D:** If this option also describes a valid concern or characteristic of base of skull fractures, it would not be the correct "except."

## Clinical Pearl / High-Yield Fact
A key point to remember about base of skull fractures is that they can be associated with **Battle's sign** (mastoid ecchymosis) or **Raccoon eyes** (periorbital ecchymosis), which are indicative of the fracture's location. Additionally, a CSF leak is a serious complication that increases the risk of meningitis.

## Correct Answer: D.