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J Clin Neurosci. 2004 Apr;11(3):311-3.

Traumatic acute subdural hygroma mimicking acute subdural hematoma.

Author information

1
Department of Neurosurgery, Ibaraki Seinan Medical Center, Sashima, Ibaraki 306-0433, Japan.

Abstract

Subdural hygroma is a frequent delayed complication of head trauma. Most hygromas are clinically 'silent' and a few cases have shown slow deterioration in the chronic stage. We report a case of subdural hygroma showing unique radiological findings and rapid deterioration. A 74-years-old female presented with a mild headache and consciousness disturbance after head injury. Computed tomography showed a midline shift as a result of two components piling up in the subdural space; the outer components showed low density, the inner components high density. Magnetic resonance imaging demonstrated that these two subdural components were subdural hygroma and subarachnoid hematoma. Simple burr hole irrigation, rather than large craniotomy, was thought to be more appropriate treatment to reduce the mass effect. Simple burr hole irrigation was performed to remove the subdural hygroma and the patient showed an excellent recovery. Careful examination of the radiological findings prevented an unnecessary procedure in this case. A possible mechanism of this phenomenon is discussed.

PMID:
14975427
DOI:
10.1016/j.jocn.2003.10.013
[Indexed for MEDLINE]

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