chronic subdural hematoma after lumboperitoneal shunt replacement: a case report from iran

background and importance: lumboperitoneal shunts are commonly used to treat several conditions, but their use can result in significant complications. we discuss a complication of these shunts that has not been reported in the literature to date. case presentation: an obese, 41-year-old woman admitted to rasool akram hospital complaining of a severe headache and blurred vision. the physical examination indicated that she had papilledema, and a lumbar puncture demonstrated cerebrospinal fluid opening pressure of 33 cm of h2o. pseudotumor cerebri was diagnosed, and the patient underwent surgery to insert a lumboperitoneal (lp) shunt. she suffered from severe headaches and nausea during the post-operative period. the post-operative syndrome was misdiagnosed as shunt-induced cerebellar tonsillar ptosis; however, further evaluation indicated that intracranial chronic subdural hematoma, a very rare complication subsequent to lumboperitoneal shunting, was the cause of the post-operative syndrome. subdural hematoma was evacuated and her symptoms disappeared thereafter.  conclusion: persistent symptoms, such as headache, nausea, and vomiting, after placement of a lumboperitoneal shunt should be taken serious, and imaging, such as a ct of the brain, should be done to rule out subdural hematoma.