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Cavum veli interpositi
Medical condition of the brain
Medical condition of the brain
| Field | Value |
|---|---|
| Name | Cavum veli interpositi |
| Image | Cavum.jpg |
| Caption | Difference between cavum septi pellucidi (CSP), cavum Vergae (CV), and cavum veli interpositi (CVI). 3=third ventricle, 4=fourth ventricle. |
In the brain, the cavum veli interpositi (CVI) is a condition in which the cistern of the velum interpositum becomes dilated. The phenomenon usually occurs in newborns.
Axial MR/CT show a triangular-shaped cerebrospinal fluid (CSF) space between the lateral ventricles. On sagittal images, CVI can appear as a slit-like, linear-to-round/ovoid CSF collection below the fornices, and above the 3rd ventricle.
There are usually no associated abnormalities, although larger lesions may cause an obstructive hydrocephalus. No treatment is usually necessary.
References
References
- Emedicine -- Cavum vergae
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