The contrast-enhanced CT scan in the diagnosis of isodense subdural hematoma

Abstract
Cases (29) of surgically-proven isodense subdural hematoma were examined by non-contrast and contrast-enhanced computerized tomography scans and 3 types of isodense collections were noted: homogeneous isodense collections, mixed-density collections and gravitational layering within subdural collections. Contrast enhancement within the cerebral cortex, cortical vessels and subdural membranes led to the correct diagnosis in each case. Contrast-enhanced scans are essential for the evaluation of isodense subdural hematomas.

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