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homonymous hemianopsia

Haruki Tokida, Yuhei Kanaya, Yutaka Shimoe, Shigeru Yamori, Koichi Tagawa, Masaru Kuriyama
We report a case of a 55-year-old man who developed acute-onset narrowing of his visual field. He showed right homonymous hemianopsia without any other neurological symptoms and signs. Brain CT and MRI showed localized hemorrhage (about 1.6 ml) in the left lateral geniculate body (LGB). A cerebral angiography showed no vascular anomalies of cerebral vessels, and the left anterior choroidal artery and left lateral posterior choroidal artery could be visualized well. He had hypertension, polycythemia and dyslipidemia and was a habitual smoker and an alcoholic...
October 21, 2016: Rinshō Shinkeigaku, Clinical Neurology
Benjamin A Abramoff, Samir Belagaje, Samuel Milton
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
Jairo Lizarazo, María Fernanda Castellanos, Claudia Rosa Omaña, Miguel Chaín, Sergio Villamizar
We present the case of a previously healthy 44-years-old man with chickenpox, severe thrombocytopenia, mucosal hemorrhage, and intracerebral hemorrhage in the right hemisphere. The patient was treated with platelets and high doses of steroids. He recovered although with persistent left homonymous hemianopsia and epilepsy, which were controlled with medication.
2016: Biomédica: Revista del Instituto Nacional de Salud
Hajime Takase, Takafumi Kawasaki, Kensuke Tateishi, Taka-Akira Yokoyama, Hidetoshi Murata, Nobutaka Kawahara
Clinical and radiological features or characteristics of posterior clinoid process (PCP) meningiomas have rarely been described because of their extreme scarcity and terminological confusion. Therefore, the strategies in the surgical intervention for PCP meningiomas have not been well established. Moreover, the presence of deep and critical neuroanatomical structures and relatively high morbidity, which can be difficult to predict preoperatively, make their surgical excision more challenging. We report two surgical cases of PCP meningioma and discuss the appropriate assessment of preoperative features and surgical strategies with review of the literature...
August 24, 2016: Neurosurgical Review
Barbara Maria Matteo, Barbara Viganò, Cesare Giuseppe Cerri, Cecilia Perin
About 20%-30% of patients undergoing neurological rehabilitation report visual field defects, one of the most frequent of which is homonymous hemianopsia (loss of the same half of the visual field in both eyes). There is still no consensus as to whether homonymous hemianopsia is best treated in a restorative or compensatory manner. The aim of this review is to describe the effects of restorative rehabilitation, whose long-term efficacy is still being debated. We analyzed 56 articles describing the use of various techniques used to promote visual field recovery but concentrating on two approaches: "border training," which involves exercising vision at the edge of the damaged visual field, and "blindsight training," which is based on exercising unconscious perceptual functions in the mild of the blind hemifield where the scotoma is deep...
July 1, 2016: Journal of Vision
Konstantin S Tsymbalov, Douglas R Fetkenhour
This case report describes the detection of homonymous hemianopsia and delirium during the admission physical examination of a patient with esophageal adenocarcinoma, resulting in the new diagnosis of subacute hemorrhagic stroke. The poststroke visual field defect can result in significant disability and reduction in quality of life. Patients with visual field cut show a severely reduced quality of life and require additional neuropsychological and visual rehabilitation. Only thorough physical examination is able to challenge prior negative positron emission tomography scan, leading to the diagnosis of subacute stroke and, following appropriate treatment, secondary stroke prophylaxis and rehabilitation, instead of brain radiation and chemotherapy...
2016: Neuropsychiatric Disease and Treatment
Lee Vien, Christina DalPorto, David Yang
PURPOSE: To discuss the clinical case of a patient with transsynaptic retrograde degeneration (TRD) demonstrated by progressive retinal nerve fiber layer loss documented by serial spectral domain optical coherence tomography secondary to traumatic brain injury after 2 months post-trauma. CASE REPORT: A 25-year-old Caucasian male patient presented to a polytrauma rehabilitation center (PRC) for evaluation and treatment secondary to a severe traumatic brain injury (TBI) from a motorcycle accident 2 months before...
June 3, 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Mohit Patel, Luyuan Li, Ha Son Nguyen, Ninh Doan, Grant Sinson, Wade Mueller
Background. Synovial sarcoma is an aggressive soft tissue sarcoma with uncertain histological origin. The pathology frequently presents as a localized disease, especially near large joints around the knee and thigh. Intracranial disease, which is rare, has been reported as metastasis from synovial sarcoma. We report a case with no obvious primary extracranial pathology, suggesting primary intracranial disease; this has not been reported in the literature. Case Description. A 21-year-old male, with a prior right skull lesion resection for atypical spindle cell neoplasm, presented with headaches, gait instability, left arm weakness, and left homonymous hemianopsia...
2016: Case Reports in Neurological Medicine
Nathan H Kung, Robert C Bucelli, Renee B Van Stavern, Joel A Goebel, Gregory P Van Stavern
A 37-year-old man with a history of progressive bilateral sensorineural hearing loss presented to a neuro-ophthalmology clinic with an acute left homonymous hemianopsia. In this article, we discuss the clinical approach and differential diagnosis of progressive combined vision and hearing loss and guide the reader to discover the patient's ultimate diagnosis.
July 1, 2016: JAMA Neurology
Akiko Ishiwata, Kazumi Kimura
Posterior cortical atrophy (PCA) is a rare neurodegenerative disorder that has cerebral atrophy in the parietal, occipital, or occipitotemporal cortices and is characterized by visuospatial and visuoperceptual impairments. The most cases are pathologically compatible with Alzheimer's disease (AD). We describe a case of PCA in which a combination of imaging methods, in conjunction with symptoms and neurological and neuropsychological examinations, led to its being diagnosed and to AD being identified as its probable cause...
2016: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Anna Siatouni, Stylianos Gatzonis, Andreas Alexopoulos, Nikos Georgakoulias, Mathildi Papathanassiou, Stefanos Korfias, Vaso Zisimopoulou, Damianos Sakas
A 30-year-old woman with intractable seizures evaluated as surgical candidate. During presurgical evaluation an invasive electroencephalogram was recommended to define the location and extent of epileptogenic zone and relationship to epileptogenic lesion. On third monitoring night the patient complained of persistent homonymous hemianopsia following a habitual seizure. Concurrently, persistent epileptic activity was evident in a small, restricted area around the right calcarine fissure. The ictal discharges persisted for the next 30 h despite high-dose administration of intravenous antiepileptic drugs, until patient was taken to operating room...
March 25, 2016: Clinics and Practice
Jeong Rae Yoo, Sang Taek Heo, Miyeon Kim, Chang Sub Lee, Young Ree Kim
We report an extremely rare case of Porphyromonas gingivalis causing brain abscess in a patient with recurrent periodontitis. The patient presented with right-sided homonymous hemianopsia and right hemiparesis. Emergent surgical drainage was performed and antibiotics were administered. P. gingivalis was identified from the anaerobic culture of the abscess. The clinical course of the patient improved with full recovery of the neurologic deficit.
June 2016: Anaerobe
Inimioara Mihaela Cojocaru, V Ştefănescu, Daniela Traşcă, Adelina Şerban-Pereţeanu, B Chicoş, M Cojocaru
A 78-year-old Caucasian man was admitted in the Department of Neurology for visual disturbances, started two days before. The next day the patient experienced headache, fever and gait disturbances. He had hypertension, diabetes mellitus, an ischemic stroke 13 years ago, longstanding seronegative rheumatoid arthritis (17 years), polynodular goiter, right ischio-pubian fracture and right femoral vein thrombosis a year ago due to a car accident, since he is treated with oral anticoagulants associated to antiaggregant, hypotensors, statin and oral antidiabetics...
October 2015: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
Kazuki Hayasaka, Satoshi Shiono, Masato Katahira, Kei Yarimizu, Masami Abiko, Toru Sato
Postoperative hemorrhagic cerebral infarction is rare but fatal complication. We report a case of hemorrhagic cerebral infarction after lung cancer surgery without a history of atrial fibrillation and cerebrovascular disease. A 58-year-old man who have a history of diabetes mellitus, hypertension and dyslipidemia underwent right segmental lung resection. During surgery, he had no atrial fibrillation episode. On postoperative day 1, he presented a slight consciousness disturbance. On the day 2, he suffered from a headache and nausea...
December 2015: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Eugene Tan, Jasmine Riviere Marcelin, Abinash Virk
No abstract text is available yet for this article.
September 2015: Mayo Clinic Proceedings
Chia-Kai Chu, Michael L Morgan, Sumayya Almarzouqi, Andrew G Lee, Steven A Newman
A 51-year-old man with rheumatoid arthritis and diabetes mellitus presented with new onset left-sided hemiparesis, left-sided neglect, and left-sided incongruous, denser inferiorly, homonymous hemianopsia. Magnetic resonance image of the brain showed prominent swelling of the right frontal, parietal, and occipital lobes greater than on the left with significant change in the fluid-attenuated inversion recovery signal in the gray matter. Perinuclear antineutrophil cytoplasmic antibodies titers were elevated, and skin biopsy demonstrating leukocytoclastic vasculitis...
January 2016: Survey of Ophthalmology
Bundhit Tantiwongkosi, Noriko Salamon
Retrochiasmal visual pathways include optic tracts, lateral geniculate nuclei, optic radiations, and striate cortex (V1). Homonymous hemianopsia and field defect variants with relatively normal visual acuity suggest that the lesions involve retrochiasmal pathways. From V1, visual input is projected to higher visual association areas that are responsible for perception of objects, faces, colors, and orientation. Visual association areas are classified into ventral and dorsal pathways. Damage to the ventral stream results in visual object agnosia, prosopagnosia, and achromatopsia...
August 2015: Neuroimaging Clinics of North America
Angela M Herro, Byron L Lam
BACKGROUND: The aim of this study was to demonstrate the relationship between topographic reduction in macular ganglion cell complex (GCC) thickness as detected with spectral-domain optical coherence tomography and visual field defects caused by ischemic occipital cortical injury. METHODS: This study was a retrospective review of all patients who presented to our eye institution between January 2012 and July 2014 with visual field defects secondary to ischemic cortical injury...
2015: Clinical Ophthalmology
George Ac Mendes, François Caire, Suzana Saleme, Sanita Ponomarjova, Charbel Mounayer
A 72-year-old man presented with sudden right homonymous hemianopsia. Work-up imaging revealed a left occipital haematoma and an arteriovenous fistula supplied by the meningeal branches to the clivus from the left vertebral artery (VA) with a rostral venous reflux into cortical veins. A microcatheter was advanced through brainstem veins into the venous collector. A compliant balloon was placed in the left VA facing the origin of feeders. The balloon was inflated to protect the vertebrobasilar circulation from embolic migration...
April 2015: Interventional Neuroradiology
Tomohide Hayashi, Naoki Akioka, Daina Kashiwazaki, Naoya Kuwayama, Satoshi Kuroda
CASE REPORT: A 10-year-old boy developed refractory bleeding and was diagnosed with immune thrombocytopenia (ITP). He was treated with steroids and intravenous immunoglobulin (IVIG). Five months later, however, he developed right homonymous hemianopsia, sensory aphasia, agraphia, and agnosia. MR imaging demonstrated multiple cerebral infarction in the bilateral cerebral hemispheres, and MR angiography revealed severe stenosis of the bilateral internal carotid arteries. He was diagnosed with moyamoya disease and successfully underwent surgical revascularization on both sides under IVIG therapy...
June 2015: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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