## **Core Concept**
Maffucci syndrome is a rare genetic disorder characterized by the presence of **enchondromas** (benign cartilage tumors) and **hemangiomas** (benign blood vessel tumors). It is associated with an increased risk of malignant transformation, particularly **chondrosarcoma**. The syndrome is also linked to **somatic mutations** in the _IDH1_ or _IDH2_ genes.

## **Why the Correct Answer is Right**
The correct answer involves understanding the key features and risks associated with Maffucci syndrome. This includes the characteristic presence of enchondromas and hemangiomas, and the potential for these lesions to undergo malignant transformation, most commonly into chondrosarcoma. The syndrome's genetic underpinnings, involving mutations in _IDH1_ or _IDH2_, are crucial for its diagnosis and understanding its pathophysiology.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without specific details on option A, it's not possible to directly address its inaccuracies. However, any option not mentioning the characteristic features (enchondromas, hemangiomas) or the genetic/malignant transformation aspects would be incorrect.
- **Option B:** Similarly, without specifics, if option B does not align with the known aspects of Maffucci syndrome (e.g., types of tumors, genetic mutations, risk of chondrosarcoma), it would be incorrect.
- **Option C:** If option C inaccurately describes Maffucci syndrome by omitting key features or misrepresenting the syndrome's characteristics, it would be incorrect.

## **Clinical Pearl / High-Yield Fact**
A critical clinical pearl for Maffucci syndrome is that patients have an **increased risk of developing chondrosarcoma**, a malignant cartilage tumor, within the pre-existing enchondromas. Early recognition and monitoring are crucial for the management of this risk. The syndrome's rarity and the specific association with _IDH1_ or _IDH2_ mutations are also high-yield facts.

## **Correct Answer: D.**