Sinusitis and Subdural Empyema: T2-weighted axial MRI scans. Note the prominent bright signal in the frontal sinuses, and spread of the process to the subdural space. Aspiration of the subdural ...

A CT scan of an 87 year-old man operated on in Vancouver General Hospital for a subdural hematoma. His brain activity was recorded by an electroencephalogram (EEG) moments before death, revealing ...

Sinusitis and Subdural Empyema: (Left and middle) T1-weighted axial MRIs; (Right) T1-weighted with gadolinium coronal MRI. Note the prominent enhancement in the frontal sinuses, and the collection in ...