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Mimics of subacute subdural hematoma in the ED

Published:February 04, 2013DOI:https://doi.org/10.1016/j.ajem.2012.10.019
      Diagnosing the true etiology of a subdural fluid collection is challenging in the acute setting of an emergency department (ED). In case of a subdural fluid collection at computed tomographic imaging, the possibility of a subdural hematoma will be considered at once. However, other causes such as subdural empyema and dural metastases with pachymeningitis hemorrhagica must be kept in mind. Especially when there is a medical history of recent sinusitis or malignancy. We describe 3 patients who presented to the ED with a history of progressive headache, aphasia, and a right-sided hemiparesis in whom a isodense subdural fluid collection was demonstrated with computed tomographic imaging.
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