1.Truncal Contrapulsion in Pretectal Syndrome.
Jae Hyeok HEO ; Ji Soo KIM ; Kyung Bok LEE ; Keun Hwa JUNG ; Hyun Kyung KIM ; Sung Hun KIM ; Jae Kyu ROH
Journal of Clinical Neurology 2006;2(1):78-81
Truncal contrapulsion in association with pretectal syndrome has not been described previously. We report a patient with vertical-gaze palsy and severe truncal contrapulsion due to an infarction in the mesodiencephalic junction. Truncal contrapulsion in this patient may have resulted from the disruption of the ascending fibers in the crossed cerebellothalamic tract.
Humans
;
Infarction
;
Mesencephalon
;
Paralysis
2.Isolated Inferior Rectus Palsy from Midbrain Infarction.
Kyeong Joon KIM ; Young Eun HUH ; Ji Soo KIM
Journal of the Korean Neurological Association 2011;29(4):399-400
No abstract available.
Diplopia
;
Infarction
;
Mesencephalon
;
Paralysis
3.Transient Upbeat Nystagmus Due to Unilateral Pontine Infarction.
Seung Chul LEE ; Ha Neul LEE ; Wooyoung JANG ; Seong Ho KOH ; Kyu Yong LEE ; Young Joo LEE
Journal of the Korean Neurological Association 2007;25(3):426-429
Upbeat nystagmus has been described in bilateral lesions of the medulla, the ventral tegmentum, the anterior cerebellar vermis, the adjacent brachium conjunctivum, and the midbrain. Imbalance of the vertical vestibulo- ocular reflex (VOR) favoring the downward VOR activity would therefore result in upbeat nystagmus. We report a patient with transient upbeat nystagmus due to unilateral pontine infarction that may have disrupted bilateral upward VOR pathways running in the ventral tegmental tracts.
Humans
;
Infarction*
;
Mesencephalon
;
Reflex
;
Running
4.Vim Thalamotomy for Intractable Rubral Tremor Associated with Midbrain Tumor: Case Report.
Byung Chul SON ; Moon Chan KIM ; Kyung Sik RYU ; Joon Ki KANG
Journal of Korean Neurosurgical Society 2000;29(10):1360-1364
No abstract available.
Ataxia*
;
Brain Stem Neoplasms*
;
Mesencephalon*
5.Distribution of serotonergic neurons in the midbrain of human fetus.
Ho Suck KANG ; Byung Pil CHO ; Tae Sun WHANG ; Young Chul YANG ; Young Hyuk LEE
Korean Journal of Anatomy 1993;26(2):117-131
No abstract available.
Fetus*
;
Humans*
;
Mesencephalon*
;
Serotonergic Neurons*
6.Immunohistochemical localization of somatostatin in the midbrain periaqueductal gray of the Korean native goat.
In Se LEE ; Heung Shik LEE ; Seong Joon YI
Korean Journal of Anatomy 1993;26(3):326-337
No abstract available.
Goats*
;
Mesencephalon*
;
Periaqueductal Gray*
;
Somatostatin*
7.Rostral Midbrain Dysfunction Associated with Hydrocephalus Secondary to Periaqueductal Tumor.
Heon KIM ; Choong Hyun KIM ; Kwoang Hum BAK ; Jae Min KIM ; Nam Kyu KIM
Journal of Korean Neurosurgical Society 1998;27(10):1424-1428
The authors report a case of rostral mesencephalic dysfunction due to obstructive hydrocephalus secondary to periaqueductal tumor who suffered multiple shunt failures and shunt revision. This patient presented with clinical syndromes, including akinetic mutism and diencephalic autonomic epilepsy. He had computed tomography(CT) and magnetic resonance(MR) findings of dilatation of ventricular system with periaqueductal tumor. The anatomical substrates of clinical findings are reviewed. A discussion of the probable mechanism proposes that dilatation of 3rd ventricle and rostral aqueduct sufficiently explains the entire syndrome.
Akinetic Mutism
;
Dilatation
;
Epilepsy
;
Humans
;
Hydrocephalus*
;
Mesencephalon*
8.Four Cases of Paramedian Thalamopeduncular Artery Infarction.
Jong Hyun REU ; Seong Hwan AHN ; Won Young JUNG
Journal of the Korean Neurological Association 2000;18(6):768-773
Cerebral infarction in the territory of the paramedian thalamopeduncular artery (PTA) causes various lesions in the upper midbrain and thalamus resulting in widespread disturbances in neurological function. However, the exact topography and variations in the territories of the PTA remain unknown. We report four patients with MRI-proven infarctions in the PTA territory. One patient had lesions in the unilateral thalamus and midbrain, the other two had lesions in the bilateral paramedian thalamus and unilateral midbrain, and the remaining patient had lesions in the unilateral thalamus and bilateral midbrain. Clinical manifestations depended on the variations of the size and extent of infarctions. Theanatomical variations of the PTA are discussed and suggested.
Arteries*
;
Cerebral Infarction
;
Humans
;
Infarction*
;
Mesencephalon
;
Thalamus
10.Bilateral Paramedian Thalamic Infarction due to Occlusion of Artery of Percheron.
Sun Woo PARK ; Sook Keun SONG ; Sa Yoon KANG ; Ji Hoon KANG ; Jung Seok LEE
Journal of the Korean Neurological Association 2013;31(3):189-191
The thalamic vascular supply is categorized into the anterior, paramedian, inferolateral, and posterior territories. The artery of Percheron (AOP), a solitary trunk that is an uncommon anatomic variant, provides bilateral arterial supply to the paramedian thalami and the rostral midbrain. Occlusion of this artery results in bilateral thalamic and mesencephalic infarctions. The case described herein is of a patient with AOP who presented with the sudden onset of lethargy.
Arteries
;
Humans
;
Infarction
;
Lethargy
;
Mesencephalon
;
Thalamus