Endoscopic fenestration of an enlarging giant occipital arachnoid cyst

Rachel Blue; Jaskeerat Gujral; Hasan S Ahmad; Omar Choudhri

doi:10.3171/2023.1.FOCVID22129

Endoscopic fenestration of an enlarging giant occipital arachnoid cyst

Neurosurg Focus Video. 2023 Apr 1;8(2):V2. doi: 10.3171/2023.1.FOCVID22129. eCollection 2023 Apr.

Authors

Rachel Blue¹, Jaskeerat Gujral², Hasan S Ahmad¹, Omar Choudhri¹

Affiliations

¹ Department of Neurosurgery, University of Pennsylvania, Philadelphia; and.
² University of Pennsylvania, College of Arts and Sciences, Philadelphia, Pennsylvania.

Abstract

This case demonstrates an endoscopic fenestration of an enlarging giant occipital arachnoid cyst. The patient is a 42-year-old woman presenting with headache, progressive vision loss, and nausea and vomiting. MRI demonstrates a large, nonenhancing cystic lesion in the right occipital lobe measuring up to 8.3 cm, consistent with an arachnoid cyst. This surgical video illustrates the technique for an endoscopic fenestration into the native ventricular system utilizing stereotactic MRI-guided stealth navigation. Postoperatively, the patient had full recovery with improvement of headaches and vision and was discharged on postoperative day 1 without complications. The video can be found here: https://stream.cadmore.media/r10.3171/2023.1.FOCVID22129.

Keywords: arachnoid cyst; endoscopic; fenestration; ventricle.