Abstract
A case of xanthogranuloma of the choroid plexus diagnosed by neuroendoscopic biopsy is reported. A 65-year-old woman visited our hospital with tension headache. CT scans showed a high density mass in the bilateral trigone of the lateral ventricles. Bilateral intraventricular tumors 20 mm in diameter were recognized in MR images. Gd-DTPA images revealed ring-like enhancement. To differentiate from metastatic tumor, a neuroendoscopoic biopsy was performed by transcortical approach of the left parietooccipital lobe. An encapsulated yellowish gray tumor neighboring the choroid plexus was seen under neuroendoscopic view. The capsule was torn by a sharp tip forceps and the included yellowish grumous material was fragmented and removed with KTP laser and blunt tip forceps. No neurologic deficits were seen postoperatively. This suggests that neuroendoscopic surgery is another method for obtaining histological specimen from an intraventricular tumor.
