Which of the following is NOT a type of migraine headache?

Cluster migraine is not classified as a type of migraine headache. Instead, cluster headaches are considered a distinct type of primary headache that is characterized by recurrent, severe pain typically located around one eye or on one side of the head, often accompanied by autonomic symptoms like tearing, nasal congestion, and ptosis.

In contrast, hemiplegic migraine, retinal migraine, and chronic migraine are all recognized subtypes of migraines. Hemiplegic migraine involves neurological deficits such as weakness on one side of the body, which can mimic a stroke. Retinal migraine is characterized by visual disturbances or temporary vision loss in one eye. Chronic migraine refers to a condition where an individual experiences headaches on 15 or more days per month, with some of these days meeting the criteria for migraine. Understanding these distinctions is crucial for accurate diagnosis and treatment planning in clinical practice.