Persistent focal enhancement of the cisternal segment of oculomotor nerve in ophthalmoplegic migraine

Ophthalmoplegic migraine (OM) is a rare form of migraine characterized by recurrent episodes of headache with ophthalmoplegia related to paresis of cranial nerves III, IV, or VI.1 Adult onset of ophthalmoplegic migraine is rare as patients usually have a history of typical migraine headaches early in life in addition to a positive family history.2 OM is a diagnosis of exclusion requiring appropriate laboratory test and neuroimaging studies to ensure an accurate diagnosis.3 In most cases of OM, there is a transient enhancement of the apparent origin of the oculomotor nerve.1,4 The recent revision of the International Headache Classification has reclassified OM from a subtype of migraine to the category of neuralgia.5 OM is rare, with an estimated annual incidence of 0.7 per million.6

Source: Neurology Clinical Practice - October 16, 2017 Category: Neurology Authors: Qureshi, I. A., Rodriguez, G. J., Cruz-Flores, S., Maud, A. Tags: Migraine, MRI Case Source Type: research