|
KMID : 1036520120020020096
|
|
Clinical Neuro-Ophthalmology
2012 Volume.2 No. 2 p.96 ~ p.98
|
|
|
Vertical ‘One-and-a-half’ Syndrome
|
|
Moon Jang-Sup
Choi Jeong-Yoon
Choi Seo-Young
Kim Ji-Soo
|
|
|
Abstract
|
|
|
|
Various mechanisms may give rise to vertical one-and-a-half syndrome that refers to conjugate upgaze palsy with monocular depression paresis, or conjugate downgaze palsy with monocular elevation paresis. A 76-years-old man with top of the basilar syndrome showed conjugate upgaze palsy with depression paresis in the right eye. He also showed iridoplegia and adduction paresis in the right eye. MRI revealed acute infarction involving the mesodiencephalic junction in the area of the right rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF), interstitial nucleus of Cajal (INC), and oculomotor fascicle. In our patient, the conjugate upgaze palsy may be explained by damage to the riMLF and INC that are premotor structures for vertical gaze, and the depression paresis in the right eye may be ascribed to disruption of the oculomotor fascicle innervating the inferior rectus.
|
|
|
KEYWORD
|
|
|
Vertical one-and-a-half syndrome, Vertical gaze palsy, Oculomotor nerve palsy
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|