Spontaneous Resolution of Cavum Veli Interpositi

Cavum veli interpositi is an open CSF space in the roof of the third ventricle that surrounds the internal cerebral veins, and is a forward extension of the quadrigeminal plate cistern. To the best of our knowledge, spontaneous resolution of a cavum veli interpositi has not been reported in the literature to date. Interestingly, case reports of spontaneous resolution of cystic cavum septum pellucidum in three patients and eighteen arachnoid cyst cases has been described in the literature. We describe the spontaneous resolution of a cavum veli interpositi or cyst in cavum veli interpositi in a 35-year-old man and review the literature of spontaneous resolution of cavum septum pellucidum and arachnoid cysts.

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