Skull & Cranial Anatomy
Nasion
The nasion is the midline point where the frontal and nasal bones meet, at the root of the nose between the eyes.
In short: Nasion
- Anterior encephaloceles often present near here.
- It is a craniofacial landmark.
- It marks the top of the nose between the eyes.
- It is used to describe the location of anterior encephaloceles.
What it is
It is the landmark at the root of the nose, where the frontal and nasal bones meet between the eyes. It is a reference point used in craniofacial surgery.
Understanding Nasion
Surgeons use landmarks like the nasion to describe and plan repair of anterior encephaloceles that appear in the central face. Because anterior encephaloceles — especially nasofrontal types — often emerge near the nasion, this landmark helps locate and communicate the position of the lesion.
Why it matters
Understanding the nasion helps families follow descriptions of where an anterior encephalocele sits on the central face and how the surgical team plans around it.
Common questions
Where is the nasion?
At the root of the nose, between the eyes.
Why is it used?
As a landmark for anterior encephaloceles.
Which encephaloceles present near it?
Anterior types, especially nasofrontal.
Bottom line
The nasion is the landmark at the root of the nose, near where anterior encephaloceles appear.
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