It's the return of Merlin. Not the birdsong identification app this time, but the Rolls-Royce Merlin - engine of the historic Supermarine Spitfire warplane. The Case Reports trio are faced with another set of patient puzzles to work through in this latest episode. In the first case (1:25), a 68-yo man, retired from farming, presents with a 6-year history of behavioural changes. Most notably, he had developed a sense of great pleasure in listening to engine sounds, like those of the historic aircraft flying over his house. He had become increasingly emotionally detached and ritualistic, and gained a sweet tooth. MR scans of the brain revealed an uncommon syndrome. https://pn.bmj.com/content/26/2/169 The second case (21:15) relates to a 47-yo woman who developed abnormal movements in all of her limbs. She had undergone a complex cardiac surgery 12 years before, and another prolonged cardiac surgery within recent weeks. The case discusses the longterm follow-up of her treatment for these involuntary movements. https://pn.bmj.com/content/26/2/157 The case reports discussion is hosted by Prof. Martin Turner¹, who is joined by Dr. Ruth Wood² and Dr. Babak Soleimani³ for a group examination of the features of each presentation, followed by a step-by-step walkthrough of how the diagnosis was made. These case reports and many others can be found in the October 2025 issue of the journal. (1) Professor of Clinical Neurology and Neuroscience at the Nuffield Department of Clinical Neurosciences, University of Oxford, and Consultant Neurologist at John Radcliffe Hospital. (2) Clinical Lecturer in Neurology at the Institute of Cognitive Neuroscience, University College London, and an Honorary Neurology SpR at the National Hospital for Neurology and Neurosurgery. (3) Clinical Research Fellow, Oxford Laboratory for Neuroimmunology and Immunopsychiatry, Nuffield Department of Medicine, University of Oxford Please subscribe to the Practical Neurology podcast on your favourite platform to get the latest podcast every month. If you enjoy our podcast, you can leave us a review or a comment on Apple Podcasts (https://apple.co/3vVPClm) or Spotify (https://bit.ly/4aXF46i). We'd love to hear your feedback on social media - @PracticalNeurol. Production and editing by Brian O'Toole. Thank you for listening.

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“What did the council decide on item 42?” — answered with the speaker and the moment.

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