The association between headache presentation, normal examination and neuroimaging findings: a retrospective analysis of patients presenting to a tertiary referral centre.

Background: There is a high worldwide burden of headaches. Selection of patients with headaches for neuroimaging, in the absence of traditional red flags, is imperative in guiding further management.

Objectives: Determine the yield of neuroimaging findings in patients with headache and normal examination; and potentially identifying additional red flags.