Laugh headaches: a rare form of headache associated with type 1 Arnold-Chiari malformation.

摘要

A 26-year-old white man was referred to our Neurology services due to headaches associated with laughing. They were first noted in childhood and had recently intensified over an 18-month period. The headaches were described as severe, lightning-sharp occipital pains that occurred whenever he had a hearty laugh and disappeared within 5-10 s of cessation of laughter. They were unrelated to coughing or straining.