I just had a CT scan and am interested in knowing what certain phrases of the results mean. There is no acute intracranial hemorrhage, large vascular territory infarct, or intracranial mass lesion. The ventricles are normal in size, shape and position. (The extra-axial CSF spaces, particularly at the vertex are prominent for a patient of this age.) I m 51 yo The bones and extracranial soft tissues are unremarkable. (Mild, patchy mucosal thickening of the ethmoidal air cells is noted.) IMPRESSION: No acute intracranial hemorrhage, large vascular territory infarct, or mass lesion.