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  1. Helen Williams
  1. Correspondence to Dr Helen Williams, Radiology Department, Birmingham Children's Hospital, Birmingham B4 6NH, UK; helen.williams{at}bch.nhs.uk

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This 18-month-old girl developed left-sided focal seizures, left arm and leg weakness 3 days after an uncomplicated appendicectomy. She had been previously well, and the surgery was uneventful. An urgent cranial MR scan was performed under general anaesthetic within 12 h of the onset of symptoms. Look at the selected images from this study and answer the following questions. Read on to confirm the answers and learn more about the use of diffusion-weighted imaging (DWI) in this condition.

Questions

  1. There is evidence of acute intracerebral haemorrhage. (True or false?)

  2. The abnormality is in the left middle cerebral artery territory. (True or false?)

  3. There is cortical oedema/swelling. (True or false?)

  4. There is increased diffusion in affected tissue. (True or false?)

  5. There is decreased (restricted) diffusion in affected tissue. (True or …

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