Karfan er tóm.
Treacher Collins-Franceschetti heilkenni er sjaldgæfur erfðasjúkdómur sem einkennist af áberandi frávikum í höfði og andliti. TCS stafar fyrst og fremst af sökkbreytingum í TCOF1 geninu.
https://rarediseases.org/rare-diseases/treacher-collins-syndrome/#:~:text=Treacher%20Collins%20syndrome%20(TCS)%20is,to%20breathing%20and%20feeding%20difficulties.
https://rarediseases.info.nih.gov/diseases/9124/treacher-collins-syndrome
