Elfin (Elven) facies is a form of

facies In geology, a facies ( , ; same pronunciation and spelling in the plural) is a body of rock with specified characteristics, which can be any observable attribute of rocks (such as their overall appearance, composition, or condition of formatio ...

where the patient presents with facial characteristics bearing some similarities to those traditionally associated with

elves An elf () is a type of humanoid supernatural being in Germanic mythology and folklore. Elves appear especially in North Germanic mythology. They are subsequently mentioned in Snorri Sturluson's Icelandic Prose Edda. He distinguishes "ligh ...

. It is characterized by prominent forehead, widely spaced eyes, upturned nose, underdeveloped mandible, dental hypoplasia, and patulous lips. It can be associated with

Williams syndrome Williams syndrome (WS) is a genetic disorder that affects many parts of the body. Facial features frequently include a broad forehead, underdeveloped chin, short nose, and full cheeks. Mild to moderate intellectual disability is observed in people ...

Donohue syndrome Donohue syndrome (also known as leprechaunism) is an extremely rare and severe genetic disorder. ''Leprechaunism'' derives its name from the hallmark elvish features (small stature, bulging eyes, thick lips, and upturned nostrils) exhibited by the ...

(which is also known as leprechaunism).

References

Medical signs {{med-sign-stub