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A 43-year-old female patient presented with transient right-sided facial numbness and dysarthria. MRI of the brain demonstrated an ischaemic infarct of the right medial occipital lobe. Embolic cerebral infarction was suspected, and transoesophageal echocardiography with injection of agitated saline was undertaken. This revealed microbubbles entering the left atrium (figure 1A,B) from the left upper pulmonary vein. There …
Competing interests None.
Patient consent Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.