RT Journal Article SR Electronic T1 Uncommon causes of ischaemic stroke: how to approach the diagnosis JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 35 OP 45 DO 10.1136/pn-2022-003449 VO 23 IS 1 A1 Robert Hurford A1 Rekha Siripurapu A1 Hedley C A Emsley A1 Joanna Lovett A1 David Werring A1 Martin Nicholas Michael Punter YR 2023 UL http://pn.bmj.com/content/23/1/35.abstract AB Stroke is a common neurological emergency and although most cases are associated with traditional vascular risk factors leading to cerebral ischaemia by well-recognised pathophysiological mechanisms, around 4% of ischaemic strokes are due to rare conditions. These are important to recognise due to their different management, which is often specific and effective, and due to their different prognosis from otherwise cryptogenic ischaemic strokes. We outline a practical approach to identifying uncommon causes of ischaemic stroke by highlighting diagnostic ‘red flags’ and propose a structured approach to investigating them.No data are available.