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MRI showing right frontal air-filled cavity. -. Diffusion-weighted MRI showing area of acute infarction. -. CT showing osteoma in paranasal sinus causing defect resulting in right pneumatocoele. An 84-year-old man in Ireland stunned doctors when scans revealed that he seemed to be missing a large chunk of his brain. Instead of brain tissue, the doctors found a 9cm (~3.5 inch) pressurized pocket of air where much of his right frontal lobe ought to be. The doctors reported the discovery recently in BMJ Case Reports . The empty head space was particularly surprising because the man arrived in the emergency department with afflictions otherwise common for his age. He had been complaining to his... Full story

4 days ago, 13 March