Pineal region choroid plexus papilloma treated with stereotactic radiosurgery: a case study.

The treatment of a patient with a third-ventricular choroid plexus papilloma is described. This relatively unusual lesion was treated with stereotactic radiosurgery. Follow-up at 17 months demonstrates substantial reduction in tumor volume and an excellent clinical outcome. The treatment of this patient suggests that radiosurgery may be an effective alternative to open surgical resection.