- Homonymous hemianopsia as the presenting sign of migrainous infarction. [Letter]
- CJCan J Ophthalmol 2018; 53(6):e229-e232
- A Modified Surgical Technique for Transposition of the Vertebral Artery to the Common Carotid Artery. [Journal Article]
- CRCase Rep Neurol 2018 Sep-Dec; 10(3):292-296
- A proximal occluded vertebral artery (VA) with reconstitution by muscular collateral vessels is a relatively common finding. However, due to inadequate intracranial anastomosis and hypoplasia or sten...
A proximal occluded vertebral artery (VA) with reconstitution by muscular collateral vessels is a relatively common finding. However, due to inadequate intracranial anastomosis and hypoplasia or stenosis of the opposite VA, a number of patients develop symptoms of brain ischemia. In the current case, a 63-year-old man presented with repeat neurological symptoms such as dizziness, nausea, vomiting, dysarthria, left hemiparesis, and right hemianopsia. Magnetic resonance imaging revealed multiple posterior infarctions. Angiography revealed the VA to be occluded and reconstituted by collateral vessels. Considering the above results, we performed vertebral carotid artery transposition. However, several technical difficulties were encountered due to space limitations in the operative field and the limited length of the vessels to be anastomosed. To overcome such situations, we introduced a modified posterior wall end-to-side anastomosis technique.
- Physiologic pituitary hyperplasia causing visual disturbance during adolescence. [Journal Article]
- JCJ Clin Neurosci 2018 Nov 20
- We report for the first time two cases of physiologic pituitary hyperplasia causing visual disturbance during adolescence. Case 1. A 15-year-old boy visited our department with a pituitary mass lesio...
We report for the first time two cases of physiologic pituitary hyperplasia causing visual disturbance during adolescence. Case 1. A 15-year-old boy visited our department with a pituitary mass lesion on magnetic resonance imaging (MRI) associated with headache and transient bitemporal hemianopsia repeating. A visual field defect became apparent on the bitemporal upper side, and the area of the visual field defect enlarged to hemianopsia. The visual defect usually occurred in relation to exercise and continued for approximately 10 min. MRI showed the mass effect of pituitary hyperplasia to the optic chiasm. At six months later after the initial onset of the symptom, the visual field defect disappeared. Case 2. A 14-year-old girl came to our emergency department with a pituitary mass lesion on MRI associated with acute headache and visual disturbance occurring during exercise. MRI revealed the possibility of pituitary hyperplasia compressing the optic chiasm; however, her clinical course showed pituitary apoplexy. We conducted emergency transsphenoidal surgery to decompress her optic chiasm. The operative findings and histological examinations revealed a normal pituitary gland. Her visual disturbance immediately recovered after the surgery. Physiologic pituitary hyperplasia during adolescence can cause visual disturbance. Surgery should be carefully conducted, given the possibility of physiologic pituitary hyperplasia with visual symptoms.
- [Traumatic homonymous hemianopsia and ganglion cell complex changes: Report of 3 cases]. [Journal Article]
- JFJ Fr Ophtalmol 2018; 41(10):910-915
- Homonymous lateral hemianopia follows an attack on the contralateral retrochiasmal visual pathways. In three patients with post-traumatic homonymous hemianopia, optical coherence tomographic (OCT) st...
Homonymous lateral hemianopia follows an attack on the contralateral retrochiasmal visual pathways. In three patients with post-traumatic homonymous hemianopia, optical coherence tomographic (OCT) study of the ganglion cell layer thickness showed hemiretinal thinning contralateral to the visual field defect. This involvement could be explained by trans-synaptic degeneration of the pre-geniculate visual pathways, whose cell nuclei correspond to ganglion cells, which synapse with the damaged retrogeniculate visual pathways.
- Severe ophthalmic manifestation in pituitary-involved granulomatosis with polyangiitis: a case report and literature review. [Case Reports]
- BOBMC Ophthalmol 2018 Nov 16; 18(1):299
- CONCLUSIONS: GPA typically affects the respiratory tract, lungs and kidneys. To date, 50 cases with pituitary involvement have been reported. Chiasmal and cranial nerve involvement leading to visual acuity impairment are common. We found 2 cases with severe visual loss resembling our case and discuss certain similarities.
- Agreement of driving simulator and on-road driving performance in patients with binocular visual field loss. [Journal Article]
- GAGraefes Arch Clin Exp Ophthalmol 2018; 256(12):2429-2435
- CONCLUSIONS: Driving simulator testing leads to results comparable to on-road driving, in terms of pass/fail rates in subjects with binocular (glaucomatous or retro-chiasmal lesion-induced) visual field defects. Driving simulator testing seems to be a well-standardized method, appropriate for assessment of driving performance in individuals with binocular visual field loss.
- [A case of various illusion, and hallucination caused by occipital lobe infarction]. [Case Reports]
- RSRinsho Shinkeigaku 2018 Sep 28; 58(9):556-559
- A 70-year-old right-handed man noticed that the right side of the screen on his television displayed a time lag compared to the other side. For five days before admission, he had characteristic polyo...
A 70-year-old right-handed man noticed that the right side of the screen on his television displayed a time lag compared to the other side. For five days before admission, he had characteristic polyopia, visual photopia, and complex hallucination. Upon neurological examination, he showed no abnormal findings except for right homonymous hemianopia. MRI showed acute infarction of the occipital gyri and part of the lingual gyrus in the left occipital lobe. After admission, he experienced various visual hallucinations and visual illusions, including metamorphopsia and micropia, many times. They gradually disappeared after 2 months. Various hallucination was caused by the release of visual information, and illusion was thought to be due to integration failure of visual information. The appearance of complex hallucination in the blind visual field is known due to the damage of the region on the left occipital gyrus. However, the cases with various symptoms such as visual photopia and micropsia are rare.
- [Li-Fraumeni syndrome in a patient with multiple anaplastic oligodendrogliomas of the brain (a case report and literature review)]. [Journal Article]
- ZVZh Vopr Neirokhir Im N N Burdenko 2018; 82(4):87-96
- CONCLUSIONS: An analysis of the literature and the clinical case indicate the success of multiple surgical interventions and chemotherapy courses performed for a long time in the patient with Li-Fraumeni syndrome manifested by colon adenocarcinoma, recurrent B-cell lymphoma, and multiple anaplastic oligodendroglioma of the brain. The patient had a good quality of life and returned to professional activity.
- A Rare Case of Thyrotropin-Secreting Pituitary Adenoma Coexisting with Papillary Thyroid Carcinoma Presenting with Visual Disturbance without Hyperthyroidism. [Case Reports]
- WNWorld Neurosurg 2018; 119:394-399
- CONCLUSIONS: Herein, we report the first case of TSHoma with DTC that presented with visual disturbance without any clinical feature of hyperthyroidism and reviewed the 13 reported cases of TSHoma coexisting with DTC. The optimal treatment strategy in patients with TSHoma and coexistent DTC has not been established, and individualized therapeutic strategies are needed.
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- Combined Endoscopic Endonasal and Video-microscopic Transcranial Approach with Preoperative Embolization for a Posterior Pituitary Tumor. [Case Reports]
- WNWorld Neurosurg 2018; 119:201-208
- CONCLUSIONS: A combined endonasal and transcranial approach with preoperative embolization is a useful strategy for hypervascular posterior pituitary tumors. A 4K 3D video microscope is compact, and it provides high-resolution images, contributing larger surgical space and facilitating a multi-team surgery.