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Subdural hygroma



The subdural space is a virtual one, so any collection within it is considered as abnormal. A subdural hygroma is a subdural collection of cerebrospinal fluid (CSF), without blood. Most subdural hygromas are believed to be derived from chronic subdural hematomas. It is commonly seen in elderly after minor trauma but can be seen in children after an infection. One of the common causes of subdural hygroma is sudden decrease in pressure by ventricular shunting. This can lead to leak of CSF into the subdural space especially in cases with moderate to severe brain atrophy. In these cases the symptoms such as mild fever, headache, drowsiness and confusion can be seen, which are relieved by draining this subdural fluid.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Subdural_hygroma". A list of authors is available in Wikipedia.
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