2014
DOI: 10.15274/nrj-2014-10026
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Arachnoid Cyst of the Cavum Velum Interpositum in a Septuagenarian: Radiological Features and Differential Diagnosis

Abstract: SUMMARY -The cavum velum interpositum (CVI) is a thin, triangular-shaped cerebrospinal fluid (CSF)-filled space between the lateral ventricles that lies below the fornices and above the third ventricle. It is a normal variant seen in premature and newborn infants and usually disappears with brain maturation. CVI is rarely seen in adults as a persistent primitive structure. Although moderate cystic dilatation of the CVI may sometimes be observed, a true large cyst is extremely rare with only a handful of report… Show more

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Cited by 6 publications
(9 citation statements)
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“…As CV lies above the veins, the cyst of the CV is seen separately from the veins. However, as CVI encloses the veins, an arachnoid cyst of the CVI encloses the veins at its lower and lateral borders [3]. The close relation of the veins and the cyst was clearly seen in our case (Figure 4).…”
Section: Discussionsupporting
confidence: 49%
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“…As CV lies above the veins, the cyst of the CV is seen separately from the veins. However, as CVI encloses the veins, an arachnoid cyst of the CVI encloses the veins at its lower and lateral borders [3]. The close relation of the veins and the cyst was clearly seen in our case (Figure 4).…”
Section: Discussionsupporting
confidence: 49%
“…Arachnoid cyst of CVI is extremely rare. To the best of our knowledge, to date, there have only seven cases of arachnoid cyst of this location been reported [3,[7][8][9][10][11][12]. The probable origin of the arachnoid cyst of CVI is thought to be tela choroidea, a vascular connective tissue which lies in the space between the lateral and third ventricles [12].…”
Section: Discussionmentioning
confidence: 99%
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