Pathophysiology and Diagnosis of Nerve Compression Headache
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Compression of extracranial nerves may result in chronic, medically refractory headaches and neck pain. Recently discovered anatomic connections between the extracranial space and intracranial trigeminal pathways may provide a conduit by which the extracranial pathology of the sensory nerves of the face, scalp, and neck may lead to headaches that are often accompanied by migraine-like features of photophobia and nausea. Nerve compression headaches have a unique presentation that follows from the mechanism and pathophysiology of nerve compression, and the diagnosis may be made on the basis of careful history and the physical examination.
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