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Table 1 (From 2015 guidelines [4])

From: Urgent referral for suspected CNS cancer: which clinical features are associated with a positive predictive value of 3 % or more?

Consider an urgent direct access MRI scan of the brain (or CT scan if MRI is contraindicated) (to be performed within 2 weeks) to assess for brain or central nervous system cancer in adults with progressive, sub-acute loss of central neurological function