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A headache circumscribed in a line-shaped area had never been described.In a 25-month period (Feb 2012 to Mar 2014), we encountered twelve patients with stereotypical headaches.The twelve patients complained of a recurrent, moderate to severe, distending, pressure-like or pulsating pain within a strictly unilateral line-shaped area.The painful line is distributed from occipital or occipitocervical region to the ipsilateral eye, forehead or parietal region.We named this distinctive but undescribed type of headache linear headache (LH).The patients had some some features similar to those of migraine.The clinical picture of LH might be a variant of an established headache, probably of migraine, or represent a novel syndrome.