Page of

Headache 

Headache
Chapter:
Headache
Source:
Introduction to Clinical Neurology (5 ed.)
Author(s):

Douglas J. Gelb

DOI:
10.1093/med/9780190467197.003.0012

Headaches can occur independently of any other disease processes (primary headache disorders) or they can be associated with a wide variety of underlying neurologic and systemic conditions (secondary headache disorders). The pathophysiologic mechanisms are incompletely under- stood. Most research has focused on migraine headaches, with the tacit assumption that other headache syndromes, both primary and secondary, have similar mechanisms.

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