Isolated unilateral oculomotor paresis in pure midbrain stroke

Amano, Yu; Kudo, Yoshihisa; Kikyo, Hideyuki; Imazeki, Ryoko; Yamamoto, Masahiro; Amari, Kazumitsu; Tanaka, Fumiaki; Johkura, Ken

doi:10.1016/j.jns.2015.03.012

Cited by 13 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The midbrain infarct is commonly tiny in size due to partial fascicular involvement. The pupillary sphincter and inferior rectus muscles are commonly spared [11]. Our second patient showed isolated complete oculomotor nerve palsy with mydriasis in the left eye.…”

Section: Discussionmentioning

confidence: 60%

Rare Neuro-Ophthalmological Manifestations of Focal Midbrain Infarction

Kim¹,

Kang²,

Choi³

et al. 2021

Res Vestib Sci

View full text Add to dashboard Cite

Because numerous important nuclei and white matter tracts are concentrated in the narrow midbrain, the tiny lesion can result in various symptoms. The anatomy of the neural network and related structures in the midbrain is complex. The most frequent clinical manifestation of lesions involving the midbrain is an eye movement disorder associated with a nuclear or fascicular origin. We have described patients with acute midbrain stroke, characterized by rare neuro-ophthalmologic manifestations, which neurologists should consider during diagnostic investigations. Case 1 showed internuclear ophthalmoplegia with Horner syndrome. In case 2 showed isolated oculomotor palsy. The third patient presented Parinaud syndrome with an unusual lesion location. Notably, patients with midbrain infarction may present with specific signs and symptoms that are compatible with mesencephalic localization. The isolated or combined neuro-ophthalmologic signs and symptoms should be interpreted in the complex anatomical context described here and investigated by immediate brainstem neuroimaging analyses and careful neurologic examinations.

show abstract

Section: Discussionmentioning

confidence: 60%

Rare Neuro-Ophthalmological Manifestations of Focal Midbrain Infarction

Kim¹,

Kang²,

Choi³

et al. 2021

Res Vestib Sci

View full text Add to dashboard Cite

show abstract

“…Identi cation of different etiologies is very important for subsequent treatment. Midbrain stroke mimicking oculomotor nerve palsy has been reported only rarely [2,4]. In this report, we present a case of isolated unilateral oculomotor dysfunction caused by midbrain infarction.…”

Section: Discussionmentioning

confidence: 84%

“…The causes of oculomotor neuropathy includes microvascular ischemia, diabetes, neoplasm, syphilis and life-threatening aneurysm [1]. In some rare cases, midbrain infarcts may mimic oculomotor nerve palsies [2]. However, they are often accompanied by other neurologic symptoms [3].…”

Section: Introductionmentioning

confidence: 99%

Isolated unilateral oculomotor palsy caused by pure midbrain infarction: a case report

Chen,

Zhu,

Liu

et al. 2023

International Journal of Neuroscience

View full text Add to dashboard Cite

Background: Multiple etiologies may cause oculomotor nerve palsies. Identi cation of different etiologies is very important for subsequent treatment. Midbrain infarction is a rare cause of oculomotor nerve palsy.Case presentation: We herein present a case of isolated unilateral oculomotor paresis caused by pure midbrain infarction. Her pupillary sphincter and inferior rectus muscles were selectively spared. The symptoms were completely relieved after two months of antiplatelet therapy. Conclusion:We proposed that bers from Edinger-Westphal nucleus and inferior rectus nucleus do not course through the paramedian area of the midbrain. Our report adds to the understanding of fascicles arrangement in the midbrain.

show abstract

“…Bilateral ptosis and contralateral elevation palsy are associated with the nuclear type [2][3][4]. Oculomotor nerve palsy resulting from infranuclear nerve damage varies in severity, for example, partial oculomotor nerve palsy can occur [5]. Usually, isolated unilateral extraocular palsies are associated with orbital lesions or muscular disorders.…”

Section: Introductionmentioning

confidence: 99%

Isolated Medial Rectus Palsy in a Patient After Percutaneous Transluminal Coronary Angioplasty

Sharma¹,

Daigavane²

2022

Cureus

View full text Add to dashboard Cite

Diplopia, a very common ophthalmic complaint, is a potential first sign of severe pathology. Here, we present a case of an atypical midbrain infarction targeting the lateral subnucleus of the oculomotor nuclear complex that manifested as diplopia with no additional symptoms of a stroke episode. Axial diffusionweighted and coronal T2-weighted magnetic resonance imaging showed an infarct in the rostral midbrain affecting the subnucleus of the medial rectus located ventrally. Diffusion-weighted imaging was used to diagnose the medial rectus nucleus infarct.

show abstract

Isolated unilateral oculomotor paresis in pure midbrain stroke

Cited by 13 publications

References 15 publications

Rare Neuro-Ophthalmological Manifestations of Focal Midbrain Infarction

Rare Neuro-Ophthalmological Manifestations of Focal Midbrain Infarction

Isolated unilateral oculomotor palsy caused by pure midbrain infarction: a case report

Isolated Medial Rectus Palsy in a Patient After Percutaneous Transluminal Coronary Angioplasty

Contact Info

Product

Resources

About