Which statement about diagnostic testing for migraine is true?

Which statement about diagnostic testing for migraine is true?

• A. Neuroimaging is routinely required in all patients.
• B. A comprehensive psychiatric evaluation is sufficient.
• C. Neuroimaging is not necessary in most patients with migraine; perform a general medical and neurologic exam; check for abnormalities (vital signs, fundoscopy, palpation and auscultation of head/neck, neurological examination)
• D. No testing is ever needed.

Answer: (C)

In diagnosing migraine, the key idea is that it is a clinical syndrome: most cases are identified from the patient’s history and a thorough neurologic exam, not from routine imaging. If the presentation is typical—recurrent, pulsating headaches with nausea, photophobia, possibly aura—and the neurologic exam is normal, imaging adds little and can lead to unnecessary costs and incidental findings. Therefore, the recommended approach is to perform a general medical evaluation and a comprehensive neurologic exam to look for red flags. Imaging is reserved for situations that raise concern for a secondary headache, such as a sudden thunderclap onset, new headaches in someone over age 50 or with a change in headache pattern, focal neurologic deficits, fever or signs of infection, or a history of trauma or cancer that might suggest an alternative diagnosis. In the absence of these red flags, imaging is not needed. Psychiatric evaluation is important for addressing comorbidities, but it does not replace the need for a full medical and neurologic assessment when diagnosing headache. And saying no testing is ever needed would be incorrect, since some patients do require imaging to exclude other serious conditions.

In diagnosing migraine, the key idea is that it is a clinical syndrome: most cases are identified from the patient’s history and a thorough neurologic exam, not from routine imaging. If the presentation is typical—recurrent, pulsating headaches with nausea, photophobia, possibly aura—and the neurologic exam is normal, imaging adds little and can lead to unnecessary costs and incidental findings. Therefore, the recommended approach is to perform a general medical evaluation and a comprehensive neurologic exam to look for red flags.

Imaging is reserved for situations that raise concern for a secondary headache, such as a sudden thunderclap onset, new headaches in someone over age 50 or with a change in headache pattern, focal neurologic deficits, fever or signs of infection, or a history of trauma or cancer that might suggest an alternative diagnosis. In the absence of these red flags, imaging is not needed.

Psychiatric evaluation is important for addressing comorbidities, but it does not replace the need for a full medical and neurologic assessment when diagnosing headache. And saying no testing is ever needed would be incorrect, since some patients do require imaging to exclude other serious conditions.