Long‐term Evolution of a Laughing Headache Associated With Chiari Type 1 Malformation

Abstract
We describe an acute‐onset, sharp, short‐lasting (few seconds) headache at the vertex, that first occurred 10 years ago in a 44‐year‐old woman. Attacks were triggered by vigorous laughing. A magnetic resonance imaging study showed a Chiari type 1 malformation.To our knowledge, laugh‐induced headache with long‐term evolution in association with Chiari type 1 malformation has not been previously reported.