Image-directed stereotactic drainage of the symptomatic cavum septi pellucidi et vergae.

Two rare cases of symptomatic non-communicating cava septi pellucidi et Vergae (CSPV) with successful treatment via image-directed stereotactic internal drainage are reported. Because the management of these benign space-occupying structures by the transcallosal approach bears certain risks, safer methods should be applied. The clinical significance, results, and advantages of the CT-stereotactic procedure are represented. If patients with symptomatic CSPV are scheduled for an operation, stereotactic intervention is proposed as the therapy of choice.