. tearing of dural bridging veins. Cerebral atrophy (e.g. in the elderly or in alcoholic patients) causes increased tension on these veins, predisposing them to tearing. The trauma causing the initial. Matthew Crocker, and Pawan Singh Minhas) 00-Hasegawa-FM.indd ii 2/28/2013 4:11:45 PM 1 Oxford Case Histories in Neurosurgery Harutomo Hasegawa Specialty Registrar in Neurosurgery, London Deanery,. Cushing was stimulated and encouraged to specialise in neurosurgery by Sir William Osler, then professor of medicine in Baltimore, later Regius Professor in Oxford. In his Pulitzer prize-winning