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Cerebral air embolism (CAE) is a rare cause of stroke. Most cerebral air emboli are caused by iatrogenic factors, such as invasive cardiac and pulmonary procedures. Here, we report an unusual case of CAE not related to any medical intervention. An 87-year-old woman became unresponsive after vomiting. A computed tomography (CT) scan of the head 6 hours after the onset of the vomiting revealed multiple...