-Case Reports-

Migraine-Like Headache with Aura Induced by a Small Infarct in the Parieto-Occipital Cortex: A Case Report

Hiroyuki Hokama, Yuki Sakamoto, Serika Yamamoto, Mizuho Takahashi, Hiroto Kodera, Akihito Kutsuna, Yosuke Fujisawa, Chikako Nito and Kazumi Kimura

Department of Neurology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan

A 56-year-old right-handed man was referred to our hospital for evaluation of sudden-onset transient quadrantanopia, which was followed by throbbing headache consistent with migraine with aura (MA). Magnetic resonance imaging (MRI) of the right parieto-occipital cortex on admission showed a hyperintense region on diffusion-weighted imaging, which disappeared 7 days later. A small cortical infarct in the parieto-occipital cortex can cause MA-like headache, and the present infarct lesion was only detectable on MRI during the acute phase. Performing MRI for patients with suspected acute MA might help identify the cause of MA-like headache and ensure appropriate management of patients.

J Nippon Med Sch 2025; 92: 116-119

Keywords
acute ischemic stroke, migraine with aura, pathophysiology, magnetic resonance imaging

Correspondence to
Yuki Sakamoto, Department of Neurology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
ysakamoto02@gmail.com

Received, May 10, 2023
Accepted, January 10, 2024