臨床神経学

Case Report

A case of lenticulostriate artery infarction presenting with peripheral type facial palsy

Misaki Kubota-Hanya, M.D.1), Keisuke Kitani, M.D.1), Hisashi Takahashi, M.D.1)* and Takashi Kasai, M.D., Ph.D.2)

1) Department of Neurology, North Medical Center, Kyoto Prefectural University of Medicine
2) Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine

An 82-year-old woman developed a droopy right eyelid with ipsilateral hemiparesis. Her ocular symptom was caused by weakness of the right frontalis, which is usually seen in patients with peripheral facial nerve palsy. However, head MRI showed acute cerebral infarction of the left lenticulostriate artery, and electroneurography did not detect damage to the right facial nerve. To explain the pathophysiology in this patient, asymmetrical bilateral cortex innervation to the right upper face was hypothesized. This case suggested that patients with some hemispheric strokes could develop upper facial weakness mimicking facial nerve palsy, and clinicians should pay attention to this potential pitfall in the differential diagnosis of facial nerve palsy.
Supplementary data
Fig. S1: An alternate hypothesis for peripheral type facial palsy due to hemispheric infarctions.
Full Text of this Article in PDF (1432K)

(臨床神経, 64:486−489, 2024)
key words:cerebral infarction, peripheral type facial palsy, central type facial palsy, pseudoptosis

(受付日:2024年1月5日)