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homonymous hemianopsia

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https://www.readbyqxmd.com/read/29905877/transsylvian-transinsular-approach-for-an-insular-cavernous-malformation-resection-3-dimensional-operative-video
#1
Justin Mascitelli, Sirin Gandhi, Ernest Wright, Michael T Lawton
Surgical resection of insular lesions is challenging due to their proximity to critical neurovascular structures such as the middle cerebral arteries (MCA), Sylvian veins, thalamus, internal capsule (IC), and lenticulostriate arteries. A surgical series using the transsylvian-transinsular approach to treat cerebrovascular pathologies reported ∼5% permanent neurological morbidity.1,2 This case demonstrates the utility of this approach for resecting an insular cavernous malformation (CM).A 25-yr-old female presented with an acute-onset right homonymous hemianopsia...
June 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29588904/endoscopic-endonasal-approach-for-complex-macroadenoma-with-suprasellar-and-retrochiasmatic-extension
#2
Edinson Najera, Carl H Snyderman, Juan C Fernandez-Miranda
In this video, we describe the technical nuances of an endoscopic endonasal approach (EEA) for a complex macroadenoma with suprasellar and retrochiasmatic extension. The patient is a 51-year-old male with several years' history of progressive visual loss. Neuro-ophthalmology assessment revealed a profound visual loss with homonymous hemianopsia and left optic nerve atrophy. His pituitary hormonal profile was normal. The options for surgical approach included transcranial, endoscopic endonasal, or a combination of both...
April 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29588890/endoscopic-transsphenoidal-salvage-surgery-for-symptomatic-residual-cystic-craniopharyngioma-after-radiotherapy
#3
Enzo Emanuelli, Giuliana Frasson, Diego Cazzador, Daniele Borsetto, Luca Denaro
Objectives  Ideal treatment of craniopharyngiomas is still controversial. Radiotherapy (RT) is considered effective for recurrences or after subtotal tumor removal (STR). About 40 to 50% of patients may experience tumor cyst expansion soon after RT; in these cases, the role of salvage surgery is debated. Design  Operative video. Setting  Tertiary care center. Participants  An 11-year-old boy diagnosed with persistent craniopharyngioma. In 2015, the patient underwent right frontotemporal craniotomy for STR at another center, complicated by panhypopituitarism...
April 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29429784/rapid-progressive-visual-decline-and-visual-field-defects-in-two-patients-with-the-heidenhain-variant-of-creutzfeld-jakob-disease
#4
Janine Lenk, Kay Engellandt, Naim Terai, Antonia Bottesi, Egbert Matthé
BACKGROUND: Heidenhain variant of Creutzfeldt-Jakob (HvCJD) is a rare disease, patients presenting with loss of visual acuity and a decline in visual fields. CASE PRESENTATION: Two patients with rapid loss of visual acuity and declining visual fields presented with homonymic hemianopsia over several weeks. Cranial MRI showed neither stroke nor other morphological changes explaining the severe visual field defects. Neurological examination revealed no pathologies...
April 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29422846/statokinetic-dissociation-riddoch-phenomenon-in-a-patient-with-homonymous-hemianopsia-as-the-first-sign-of-posterior-cortical-atrophy
#5
Ryuichiro Hayashi, Shigeki Yamaguchi, Toshio Narimatsu, Hiroshi Miyata, Yasushi Katsumata, Masaru Mimura
We report a 60-year-old woman with posterior cortical atrophy (PCA) who presented with left homonymous hemianopsia persisting for 5 years; the patient's condition was observed using static, but not kinetic, perimetry. This statokinetic dissociation of hemianopsia, which is often called Riddoch syndrome, might have been caused by a dysfunction of the right primary visual and visual association cortices, representing a functional imbalance within a disturbed visual cortex. In patients with PCA and visual field defects, both static and kinetic perimetry may be useful for understanding the extent of degeneration in the visual cortex, in addition to examinations of unilateral neglect...
September 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/29342484/-neuro-ophthalmogical-aspects-of-driving-ability
#6
Klaus Rohrschneider
The requirements regarding visual functioning needed for driving ability are stipulated in Annex 6 of the German driving licence regulations: In case of a visual disorder an ophthalmological assessment is essential: It is of crucial importance for the examining ophthalmologist to exhaust all ocular-medical possibilities to enable the applicant to maintain or regain his driving permission. In the overwhelming majority of the cases this is eminently feasible.However, there is no way to attest driving ability in a patient suffering acute one-sided visual loss for a period of 3 months on the basis of legal recommendations...
January 2018: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/29197090/syndrome-of-transient-headache-and-neurologic-deficits-with-cerebrospinal-fluid-lymphocitosis-should-be-considered-in-children-presenting-with-acute-confusional-state
#7
Romina Moavero, Laura Papetti, Samuela Tarantino, Barbara Battan, Irene Salfa, Annalisa Deodati, Riccardo Schiaffini, Federico Vigevano, Massimiliano Valeriani
BACKGROUND: Transient headache and neurologic deficits with cerebrospinal fluid lymphocytosis (HaNDL) is benign and self-limited, with neurologic deficits including sensory disturbance of one body side, aphasia, nausea/vomiting, weakness, decreased vision, homonymous hemianopsia, photophobia. Acute confusional state can rarely occur. Papilledema and intracranial hypertension have also been described. It is a rare entity mainly affecting adults; however, it has been sporadically described in children and adolescents...
March 2018: Headache
https://www.readbyqxmd.com/read/29152467/an-unruptured-anterior-communicating-artery-aneurysm-presenting-with-left-homonymous-hemianopsia-a-case-report
#8
Jae Wook Kim, Taek Kyun Nam, Ki Su Park, Yong Sook Park, Jeong Taik Kwon
Unruptured cerebral aneurysms sometimes present with visual symptomsdue to compression of the visual pathways. However, until now, unruptured anterior communicating artery (ACoA) aneurysms presenting visual field defects have been extremely rare. The authors report the case of a 51-year-old woman who presented with left homonymous hemianopsia. Radiological findings demonstrated an ACoA aneurysm filled with thrombus, that was compressing the optic chiasm and post-chiasmal tract. The patient underwent clipping of the aneurysm, which resolved the visual field defect...
June 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29125025/choroid-plexus-avm-with-anomalous-origin-of-the-capsulothalamic-artery-a-case-report
#9
Shigeru Yamauchi, Taichiro Kawakami, Keiji Murata, Tomoya Ishiguro, Hidetoshi Ikeda, Akimasa Nishio
Background and importance Traditionally, it has been believed that the plexal segment of the anterior choroidal artery (AChoA) can be sacrificed safely. Here, we present a case of choroid plexus arteriovenous malformation (AVM) in which the capsulothalamic artery originated from distal plexal segment of the AChoA. Clinical presentation A 45-year-old man was diagnosed with arteriovenous malformation involving the left inferior horn in screening MRI. Preceding stereotactic radiosurgery, transarterial target embolization was performed...
February 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29091250/functional-hemispherectomy-for-adult-rasmussen-encephalitis-a-case-report-and-literature-review
#10
Qun Wang, Zhanpeng Zhu, Guangming Wang, Lichao Sun, Jiqing Qiu
BACKGROUND: Rasmussen encephalitis (RE) is a rare and severe brain disorder associated with unilateral hemispheric atrophy, manifesting as severe refractory epilepsy, hemiplegia, defects of motor and speech functions, and cognitive impairment. Treatment of RE, especially in adult patients, is extremely challenging. Herein, we report the case of an adult patient with RE who was treated with a functional hemispherectomy and achieved a favorable prognosis. CASE REPORT: A 29-year-old woman presented with a 24-year history of epileptic seizures...
September 26, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29090380/central-nervous-system-aquaporin4-autoimmunity-revealed-by-a-single-pseudotumoral-encephalic-lesion
#11
Guillaume Fargeot, J Aboab, J Savatovsky, R Marignier, A Lecler, O Gout
The radiological spectrum of neuromyelitis optica has become broader since the detection of aquaporin4 antibodies. We report a case of neuromyelitis optica patient with pseudotumoral encephalic lesion. A 66 year-old woman presented with sudden left lateral homonymous hemianopsia. A brain MRI showed an isolated and extensive right temporo-parieto-occipital lesion, involving periventricular white matter and the corpus callosum, with strong enhancement on post-gadolinium T1 weighted images, highly suggestive of lymphoma...
February 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29019903/an-atypical-presentation-of-functional-visual-loss-a-case-report
#12
Junkyu Chung, Kyung Hyun Jin, Jaheon Kang, Tae Gi Kim
RATIONALE: Functional visual loss (FVL) can manifest as various symptoms. Decreased distant visual acuity is the most common symptom and visual field defect is the second most common symptom. Hemianopsia is rarely reported. In an atypical situation of FVL, it is important to prove that no organic pathology exists, through detailed history taking and appropriate examinations. PATIENT CONCERNS: This review presents the case of a 48-year-old male patient presented with decreased bilateral visual acuity and visual field defect after a traffic accident 3 weeks ago...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28980562/-structural-retinal-and-optic-nerve-changes-in-patients-with-post-geniculate-visual-pathway-damage
#13
N M Eliseeva, N K Serova, V P Erichev, L A Panyushkina
AIM: To establish the possibility of retrograde trans-synaptic neural degeneration following acquired post-geniculate visual pathway damage. MATERIAL AND METHODS: Twenty-two patients with homonymous hemianopia caused by acquired post-geniculate visual pathway damage were examined. Peripapillary retinal nerve fiber layer (RNFL) thickness and ganglion cell complex (GCC) measurements were assessed with RTVue-100 Fourier-domain optical coherence tomography (OCT). RESULTS: In 12 out of 22 patients we detected binocular GCC thinning that was ipsilateral to post-geniculate involvement...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28922876/visual-deficit-from-laser-interstitial-thermal-therapy-for-temporal-lobe-epilepsy-anatomical-considerations
#14
Walter J Jermakowicz, Michael E Ivan, Iahn Cajigas, Ramses Ribot, Ignacio Jusue-Torres, Mehul B Desai, Armando Ruiz, Pierre-Francois D'Haese, Andres M Kanner, Jonathan R Jagid
BACKGROUND: Laser interstitial thermal therapy (LITT) is quickly emerging as an effective surgical therapy for temporal lobe epilepsy (TLE). One of the most frequent complications of the procedure is postoperative visual field cuts, but the physiopathology of these deficits is unknown. OBJECTIVE: To evaluate potential causes of visual deficits after LITT for TLE in an attempt to minimize this complication. METHODS: This retrospective chart review compares the case of a 24-year-old male who developed homonymous hemianopsia following LITT for TLE to 17 prior patients who underwent the procedure and suffered no visual deficit...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28805006/an-57-year-old-female-with-sudden-onset-of-transient-right-homonymous-hemianopsia
#15
Tara Jayde Nail, Julio M Araque, John Vender, Amyn M Rojiani
No abstract text is available yet for this article.
September 2017: Brain Pathology
https://www.readbyqxmd.com/read/28653784/massive-tumor-embolism-in-the-abdominal-aorta-from-pulmonary-squamous-cell-carcinoma-case-report-and-review-of-the-literature
#16
Kenji Ohshima, Yuri Tsujii, Kazuya Sakai, Hiroshi Oku, Eiichi Morii
Acute arterial tumor embolism is a rare complication in cancer patients. Most of the previously reported cases of arterial tumor embolism have been associated with pulmonary malignancies and occurred during the intraoperative and postoperative periods. Very few cases occurred spontaneously. To our knowledge, there is no previous report of spontaneous and massive tumor embolism occluding the abdominal aorta in patients suffering from primary pulmonary carcinoma. We describe the case of 64-year-old man who presented with left homonymous hemianopsia and backache...
September 2017: Pathology International
https://www.readbyqxmd.com/read/28512507/homonymous-hemianopsia-due-to-posterior-cortical-atrophy
#17
Francesco Pellegrini, Andrew G Lee, Pietro Zucchetta
A 63-year-old woman presented to her ophthalmologist complaining of reading difficulties for two years. Ophthalmological examination revealed a homonymous hemianopsia. Brain magnetic resonance imaging (MRI) scan was interpreted as normal, but positron emission tomography (PET) showed areas of posterior brain hypometabolism. This case highlights the high diagnostic suspicion that ophthalmologists should have regarding posterior cortical atrophy (including the visual variant of Alzheimer disease) in patients complaining of reading difficulties in the setting of a normal ophthalmic examination...
June 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28498375/neuro-ophthalmologic-manifestations-of-cholangiocarcinoma-a-case-series
#18
REVIEW
G Rico, S V Smith, Y Siddiqui, A Whyte, D Gombos, A G Lee
PurposeTo describe the neuro-ophthalmologic findings of cholangiocarcinoma.MethodsWe report a retrospective chart review of cholangiocarcinoma patients presenting at two tertiary care centers in the Texas Medical Center.ResultsFive patients with neuro-ophthalmologic symptoms related to cholangiocarcinoma were identified. One patient presented with diplopia due to metastasis to the left medial rectus muscle, two patients had metastasis to the occipital lobe resulting in homonymous hemianopsia, one patient had involvement of the clivus resulting in sixth nerve palsy, and one presented with a hypercoagulable state-related stroke causing a homonymous hemianopsia and visual hallucinations...
August 2017: Eye
https://www.readbyqxmd.com/read/28436816/-almost-lost-at-sea-an-unusual-cause-of-cortical-blindness
#19
Jeffrey Walden, Edward Van Williamson
A middle-aged man with a history of type 2 diabetes mellitus, hypertension, hyperlipidemia, prior cerebral vascular accident, and remote history of generalized seizure disorder presented with worsening right-sided visual deficits and focal seizures. On examination the patient had dense homonymous hemianopsia on the right side. He was initially diagnosed with a stroke and underwent further investigation for potential causes. However, upon further review, magnetic resonance imaging (MRI) findings and repeat examination were more consistent with seizure-related effects on cortical brain matter as the cause of his visual disturbances rather than stroke...
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28431954/isolated-intracranial-fibromuscular-dysplasia-of-the-posterior-cerebral-artery
#20
Min-Ju Yeo, Ho-Yeong Jeon, Min-Ju Cha, Hye-Yeon Jang, Sang-Gil Lee, Ji Seon Kim, Sung-Hyun Lee, Sang-Soo Lee, Dong-Ick Shin
Fibromuscular dysplasia (FMD) is a nonatherosclerotic, noninflammatory arterial disease that most commonly affects the renal and internal carotid arteries, but intracranial FMD is very rare. We report a patient with FMD involving the posterior cerebral arteries (PCAs). A 24year old female was presented with a 4day history of right homonymous hemianopsia with throbbing headache in the left temporo-occipital area. The brain magnetic resonance imaging (MRI) revealed an acute ischemic stroke in the left PCA territory, while the Time of Flight (TOF) magnetic resonance angiogram (MRA) showed segmental luminal irregularities in the left proximal PCA...
September 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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