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An abnormal collection of cerebrospinal fluid (CSF) that forms a pocket inside the cranium, just outside of the dura. Generally occurs as a complication of duraplasty (a common part of a Chiari Decompression surgery). While a small amount of fluid getting through the dura patch is normal after surgery, the body should absorb it and it should resolve within the first month or two. If it fails to reduce in size and resolve, that is a good indication that there is a cranial dura leak exists. A pseudomeningocele are most common amongst patients with an underlying connective tissue disorder (such as Ehlers-Danlos Syndromes) as their dural tissue is more fragile than that of the general population, they are more likely to have problems with the adherence of the patch, and they are more likely to have other comorbid conditions that can further complicate the healing process (such as Intracranial Hypertension, where the untreated high pressure can actually cause a cranial leak). Since the pseudomeningocele is inside the cranium, it can cause a “mass effect” that can raise intracranial pressure.

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Bridges are built as a means to assist people in getting over the things that obstruct their path. We are constantly facing obstacles when it comes to our health, so we decided to build a bridge! Chiari Bridges is a non-profit network built by Chiarians for Chiarians. Our goal is to provide information, substantiated by published studies, in a way that is easy to understand. We encourage readers, to not only read our articles, but look up every study for themselves and read that too. Print it out and sit down with a highlighter; read it as many times as necessary until you understand; then use it to talk to your doctors. Our doctors are under no obligation to read our articles, but they should be willing to read officially published studies from journals, especially those specific to their profession. As many of our authors are patients as well, all authors sharing original pieces will be writing under pseudo-ghost names, to protect them from being black-listed by their doctors. Chiari Bridges is not affiliated with any physician or medical group. You should in no way use this site as a replacement for diagnosis, treatment, or medical from a qualified medical professional. The information provided on our website is strictly for educational purposes, in order to help further the understanding of Chiari, and its associated conditions. Our goal is to share our collective experiences and the information we have gathered, with those in need of answers, that it may increase your knowledge and guide you in conversations with your doctors.