A hyperdense extra-axial collection measuring 7 mm in thickness, keeping with acute subdural hematoma, is seen along the left tentorium cerebelli. Minimal extension of this hematoma under the left squamous temporal bone is noted. No skull fracture, hemorrhagic cerebral contusions, subarachnoid/intraventricular hemorrhage, mass effect, or midline shift is noted. Some hyperdense contents are seen along the anterior interhemispheric fissure which is likely calcifications. Mild age-related atrophic brain parenchymal changes. Right maxillary sinus mucous retention cyst and non-pneumatized right frontal sinus; the remaining paranasal sinuses as well as bilateral mastoid air cells are well-aerated and clear.