Porencephalic Cyst after Endoscopic Third Ventriculostomy and Ommaya Reservoir Placement: Case Report and Review of the Literature
BACKGROUND: A 13-year-old female patient was diagnosed with a tectal glioma (TG), a subgroup of astrocytoma that can result in obstructive hydrocephalus secondary to aqueductal stenosis. Endoscopic third ventriculostomy (ETV) is used to treat this type of hydrocephalus with a good success rate. Our institution performs ETV and Ommaya reservoir (OR) placement in these cases. The OR allows measurement of intracranial pressure (ICP) and cerebrospinal fluid (CSF) access and a method for performing ventricular dye studies to evaluate third ventricular stoma (TVS) patency. In this case, a porencephalic cyst (PC) developed around the OR's ventricular catheter (OVC) two and a half months after surgery.
CONCLUSION: The PC is thought to have developed in association with TVS stoma closure and resolved after ETV revision.
Dominguez, J. F., Shah, S., Li, B., Feldstein, E., Kim, M. G., & Tobias, M. E. (2021). Porencephalic Cyst after Endoscopic Third Ventriculostomy and Ommaya Reservoir Placement: Case Report and Review of the Literature. Child's Nervous System : ChNS : official journal of the International Society for Pediatric Neurosurgery, 37 (9), 2917-2921. Retrieved from https://touroscholar.touro.edu/nymc_fac_pubs/3191