Dementia is a massive and increasing global problem, with the current prevalence anticipated to double every 20 years as people live longer. Neuroimaging in dementia is recommended by most clinical guidelines and its role has traditionally been to exclude a mass lesion, rather than to support a specific diagnosis. All radiologists will be aware of a steady rise in the number of requests for brain imaging in old people, but what can imaging reliably tell us and what kind of imaging should we use? In affluent societies we now have a range of structural and molecular brain imaging techniques at...

Alison Murray offers an enchanting retelling of a much-loved Aesop's fable with a mischievous twist.
Hare (Leapus swifticus) can barely stay still for a minute. He's the fastest on the farm. Tortoise (Slow and steadicus) can stay still for a very long time. She has occasionally been mistaken for a rock. So when they decide to have a race, Hare is certain to win . . . isn't he? Through the meadow, around the duck pond, and straight into the carrot field. Carrots? Oh, dear. Whether encountering the classic tale for the first time or tracing the racecourse map to relive...