Ophthalmoplegic Migraine and Infundibular Dilatation of a Cerebral Artery

• Autor(a) principal: Vieira, JP
• Data de Publicação: 2008
• Outros Autores: Castro, J, Gomes, LB, Jacinto, S, Dias, AI
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.17/2342
• topic: Cerebral Arterial Diseases/complications; Cerebral Arterial Diseases/radiography; Dilatation, Pathologic/complications; Flunarizine/therapeutic use; Migraine Disorders/drug therapy; Migraine Disorders/etiology; Oculomotor Nerve Diseases/complications; Oculomotor Nerve Diseases/radiography; Prednisone/therapeutic use; Vasodilator Agents/therapeutic use; Child; HDE NEU PED

Ophthalmoplegic migraine (OM) is a childhood disorder of uncertain etiology manifesting recurrent unilateral headache associated with a transitory oculomotor (usually IIIrd nerve) palsy. Recent publications emphasize the finding on MRI of contrast enhancement in the IIIrd nerve suggesting that OM may be a recurrent inflammatory neuropathy. We report the case of a 7-year-old boy with typical symptoms of this disorder. Angio MR and Angio CT revealed the presence of an infundibular dilatation of a perforating branch of the posterior cerebral artery adjacent to the symptomatic IIIrd nerve. We speculate that this and perhaps other cases of OM may have a different pathophysiology related to compression of the IIIrd nerve by an adjacent vascular structure that could activate the trigeminovascular system and produce migrainous pain.