Benign cough "cluster" headache.

Benign cough headache presents as a sudden bilateral, short-lasting pain precipitated by coughing. The diagnosis requires noninvasive brain-imaging so that secondary causes can be ruled out. We describe a man, 57 years of age, complaining of an atypical form of benign cough headache which shares some features with episodic cluster headache. To our knowledge, this is the first description of a link between these two types of idiopathic headache.