Pseudocysts are a potential complication for individuals with hydrocephalus, particularly those with ventriculoperitoneal (VP) or lumboperitoneal (LP) shunts<\/a>. These fluid-filled collections are not formed by living tissue lining the cysts \u2013 hence the name \u2018pseudocysts\u2019.\u00a0 If they form, they may cause complications if left untreated. This article explores what pseudocysts are, why they occur, and how they impact individuals with hydrocephalus.<\/p>\n Pseudocysts are fluid collections that can develop in the peritoneal cavity (the lining of the abdominal cavity). Unlike true cysts, pseudocysts lack an epithelial lining. They can form as a result of the body\u2019s response to the shunt or due to an infection.\u00a0 They can result in the blockage in the flow of cerebrospinal fluid (CSF)<\/a> or cause a problem of CSF absorption in the abdomen.<\/p>\n While pseudocysts can remain asymptomatic and not require intervention, they can cause discomfort or complications if they grow or affect the shunt\u2019s function.<\/p>\n Pseudocysts occur as a result of the body\u2019s response to an irritation in the abdomen. The most common reasons for their formation include:<\/p>\n Pseudocysts often don\u2019t cause symptoms, especially when small. \u00a0Infections causing a pseudocyst may also show symptoms such as fever, redness along the shunt, tenderness at or along the shunt or in the abdomen.\u00a0 Infections require prompt evaluation and treatment.<\/p>\n However, larger or symptomatic pseudocysts can cause:<\/p>\n Pseudocysts are typically diagnosed through imaging studies such as:<\/p>\n If a pseudocyst causes symptoms or affects shunt function, intervention may be necessary. Treatment options include:<\/p>\n If you experience abdominal pain, swelling, or signs of shunt malfunction (headaches<\/a>, nausea, vomiting), consult your healthcare team promptly. Early detection and treatment are crucial to prevent complications, particularly if pseudocysts interfere with shunt function or lead to infection.<\/p>\n Regular monitoring and staying in communication with your doctor can help manage pseudocysts and ensure proper shunt function.<\/p>\n Information you can trust! This article was produced by the Hydrocephalus Association, copyright 2025. We would like to thank\u00a0<\/i>Bruce A. Kaufman, MD<\/i><\/a>,\u00a0for his valuable contribution and expert input.<\/i>
\nWhat Are Pseudocysts?<\/h2>\n
\nWhy Do Pseudocysts Form in Shunted Patients?<\/h2>\n
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\nSymptoms of Pseudocysts<\/h2>\n
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\nDiagnosis of Pseudocysts<\/h2>\n
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\nTreatment Options<\/h2>\n
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\nSeeking Medical Advice for Pseudocysts<\/h2>\n
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\nThis article is designed to provide helpful information on the subjects discussed. It is not intended as a substitute for treatment advice from a medical professional. For diagnosis or treatment of any medical condition, consult your doctor.<\/i><\/p>\n\r\n Was this resource helpful?<\/h3>\r\n <\/div>\r\n