Because of widely available computed tomography and magnetic resonance imaging, the number of asymptomatic and/or minimally symptomatic cases of “incidental” subdural hematomas/collections apparently increased. MR images in sixteen cases of asymptomatic subdural space widening (aged 3 months to 84 years old) were reviewed. Etiology and clinical courses were correlated with MR findings. A rapid decrease in the brain volume presumably results in subdural space widening and subdural hematoma / collection because of rigid calvarium.
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5.
MiyamotoSIgarashiMKamoshitaS: A case of herpes simplex encephalitis with subdural effusion and intracranial calcification. Brain & Development (Domestic Ed)14: 333–339, 1982.
6.
JohnsonDEColemanLPoeL: MR of progressive neurodegenerative change in treated Menkes' kinky hair disease. Neuroradiology33: 181–182, 1991.
