I Recently Had A CT-Head Without Contrast Due To A

I recently had a CT-Head without contrast due to a fall on a concrete driveway. Findings I don't understand without extensive study/search are: "There is moderate diffuse cerebral atrophy. There are minimal periventricular and deep cortical white matter hypodensities. These are nonspecific, but most likely represenThere are no extraaxial fluid collections. The calvarium is unremarkable. There is no orbital abnormality. Visualized paranasal sinuses are clear. Mastoid air cells are clear. Please explain to me YYYY@YYYY Much thanx, Andy McNeil