Trapped ventricle after laser ablation of a subependymal giant cell astrocytoma complicated by intraventricular gadolinium extravasation: case report.

摘要: Magnetic resonance imaging-guided stereotactic laser ablation of intracranial targets, including brain tumors, has expanded dramatically over the past decade, but there have been few reports complications, especially those occurring in a delayed fashion. Laser subependymal giant cell astrocytomas (SEGAs) is an attractive alternative to maintenance immunotherapy some children with tuberous sclerosis complex (TSC); however, effect treatment on disease progression and nature frequency potential complications remains largely unknown. The authors report case 5-year-old boy TSC who underwent SEGA at right foramen Monro 2 separate occasions. After second ablation, immediate posttreatment MRI revealed gadolinium extravasation from tumor into lateral ventricle. Nine months later, patient presented papilledema obstructive hydrocephalus secondary intraventricular adhesions causing trapped This was successfully treated endoscopic septostomy. discuss cause clinical management complication not previously reported after relatively novel surgical therapy.