Based on the provided reference, "Lancaster disease" is actually Lancaster's syndrome, a form of Treacher Collins syndrome characterized by abnormalities of the head and face. This particular form is considered "sporadic," meaning it arises spontaneously and isn't directly inherited in most cases. It is said to affect 1 in 50,000 people.
Here's a breakdown:
- What it is: A sporadic type of Treacher Collins syndrome.
- Key Feature: Abnormalities affecting the head and face.
- Rarity: Affects approximately 1 in 50,000 people.
- Origin: Sporadic, meaning it's not usually inherited.
