**Core Concept**
Mitral valve vegetations, a complication of infective endocarditis, can lead to serious consequences, including embolization. Embolization occurs when the vegetation breaks off and travels through the bloodstream, potentially causing a blockage in a distant organ or vessel.

**Why the Correct Answer is Right**
Mitral valve vegetations typically embolize to the lungs, as the left atrium, which is connected to the mitral valve, pumps blood directly into the pulmonary artery. This direct route allows the vegetation to easily break off and travel to the lungs, where it can cause a pulmonary embolism. The other options are less likely due to the anatomy of the cardiovascular system.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the mitral valve is not directly connected to the systemic circulation, making embolization to the brain less likely.
* **Option B:** This option is incorrect because the vegetation would not typically travel to the right side of the heart, as the mitral valve is located on the left side of the heart.
* **Option C:** This option is incorrect because the mitral valve is not directly connected to the coronary circulation, making embolization to the heart muscle itself less likely.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that the direction of blood flow plays a crucial role in determining the likelihood of embolization. In general, vegetations from the left side of the heart (such as the mitral valve) are more likely to embolize to the lungs, while vegetations from the right side of the heart (such as the tricuspid valve) are more likely to embolize to the systemic circulation.

**Correct Answer:** D