Lateral Skull Base Pseudomeningoceles: Diagnosis, Prevention, and Treatment.

Pseudomeningocele is a rare complication of lateral skull base surgery or trauma. The diagnosis of pseudomeningocele relies heavily on clinical examination as well as imaging findings, namely computed tomography to identify skull base defects and magnetic resonance imaging to characterize fluid collections. There are limited known modifiable risk factors for the development of pseudomeningocele, and as such, there is significant emphasis placed on intraoperative repair or reconstruction of the dura and skull. A wide variety of techniques and materials are utilized, typically in multilayered fashion. In the event these reconstructions fail, the majority of pseudomeningocele can be managed conservatively.