What is the CT appearance of subdural effusions in children? How are subdural effusions differentiated from widening of the subarachnoid space either secondary to atrophy or to increased pressure within the subarachnoid space?
D001284:Atrophy; D002540:Cerebral Cortex / Q000473:pathology*; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D007427:Intracranial Pressure; D008581:Meningitis / Q000000981:diagnostic imaging*; D013346:Subarachnoid Space; D013353:Subdural Effusion / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed