CSF, Ventricles & Brain Anatomy
Temporal horn
The temporal horn is the portion of the lateral ventricle that extends into the temporal lobe of the brain.
In short: Temporal horn
- It extends into the temporal lobe.
- Its enlargement can be an early sign of hydrocephalus.
- It is assessed on imaging.
- It is one of the named regions of the lateral ventricle.
What it is
The temporal horn is the portion of the lateral ventricle that extends downward and forward into the temporal lobe, on the side of the brain. It is one of the named regions of the lateral ventricle.
Understanding Temporal horn
Enlargement of the temporal horns can be an early and useful sign of hydrocephalus on imaging, sometimes becoming prominent before other changes. Radiologists assess the temporal horns when evaluating whether ventricular enlargement reflects hydrocephalus, since their dilation can help distinguish active hydrocephalus from other causes of enlarged ventricles. Their appearance is part of the overall imaging assessment.
Why it matters
Understanding the temporal horn helps families see why imaging examines this part of the ventricles, since its enlargement can be an early and informative sign of hydrocephalus.
Common questions
Where is the temporal horn?
In the temporal lobe, on the side of the brain.
Why is it important?
Its enlargement can be an early sign of hydrocephalus.
Is it assessed on imaging?
Yes.
Bottom line
The temporal horn extends into the temporal lobe, and its enlargement can be an early sign of hydrocephalus.
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