%0 Journal Article %T Cluster headache and arachnoid cyst %A Bengt Edvardsson and Staffan Persson %J SpringerPlus %D 2013 %I Springer %R 10.1186/2193-1801-2-4 %X Neuroimaging, preferably contrast-enhanced magnetic resonance imaging should always be considered in patients with cluster headache despite normal neurological examination. Late-onset cluster headache represents a condition that requires careful evaluation. Supra- and intrasellar arachnoid cyst can present as cluster headache. %K Cluster headache %K Arachnoid cyst %K Neuroimaging %K Secondary %K Symptomatic %K Magnetic resonance imaging %K Computer tomography %U http://www.springerplus.com/content/2/1/4/abstract