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Hemorrhage on noncontrast head CT. Axial CT image (A) demonstrates hypodensity and loss of gray-white differentiation in the left middle cerebral artery territory, consistent with acute-to-subacute infarction, with a focus of internal hyperdensity (arrow), representing hemorrhagic transformation. Axial CT image in another patient (B) demonstrates a left temporooccipital intraparenchymal hematoma (arrow) and a left hemispheric subdural hematoma (arrowheads).
