CONTRAST-ENHANCED CT SCAN IN THE DIAGNOSIS OF ISODENSE SUBDURAL HEMATOMA

The authors review 29 cases of surgically proven isodense subdural hematomas examined by non contrast and contrast enhanced computerized tomography scans. Three 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.