**Treacher-Collins Syndrome**

**Core Concept**
Treacher-Collins syndrome is a genetic disorder characterized by deformities of the ears, eyes, cheekbones, and chin. It is caused by mutations in the TCOF1 or POLR1C genes, which affect the development of the face and ears. This condition is inherited in an autosomal dominant pattern.

**Why the Correct Answer is Right**
Treacher-Collins syndrome is a congenital disorder that affects the development of the facial bones and ears. The condition is characterized by microtia (small ears), micrognathia (small lower jaw), and mandibular hypoplasia (underdeveloped lower jaw). The facial features are often asymmetrical, and the eyes may be set low or beptosplenoid (bulging). This condition can also lead to hearing loss, respiratory problems, and feeding difficulties in infants.

**Why Each Wrong Option is Incorrect**
**Option A:** Ear malformations are a hallmark of Treacher-Collins syndrome, so this option is incorrect.
**Option B:** Micrognathia and mandibular hypoplasia are common features of this condition, making this option incorrect.
**Option C:** This option is incorrect because Treacher-Collins syndrome is not primarily associated with cleft palate.

**Clinical Pearl / High-Yield Fact**
Treacher-Collins syndrome is often associated with hearing loss, which can be due to the malformed ears or the underdeveloped middle ear. It's essential to assess the hearing of patients with this condition to provide appropriate management.

**Correct Answer: C.**