title: Chronic paroxysmal hemicrania: lack of pre-chronic stage.
abstract: Two cases of chronic paroxysmal hemicrania are presented, both with atypical late onset of illness and lack of pre-CPH stage. In one patient the pain attacks were unusually short, and no associated symptoms during the pain attack were observed. However, the positive reaction to indomethacin substantiates the diagnosis of CPH.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003027:Cluster Headache / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D012008:Recurrence; D013577:Syndrome