No abstract available.
Atrophy ; Hemianopsia

No abstract available.
Hemianopsia* ; Isoniazid ; Tuberculosis

No abstract available.
Aneurysm ; Carotid Artery, Internal ; Hemianopsia

We report a case of immature teratoma arising at the suprasellar region in a 18 year-old-male who presented with bitemporal hemianopsia, nausea and polydipsia. The teratoma is a rare neoplasm consisting of 0.5% to 1.2% of all intracranial tumors. The clinical presentation, radiologic finding, pathology and treatment are briefly described with a review of other cases from the literature in view of clinical features and management.
Chemoradiotherapy ; Hemianopsia ; Nausea ; Pathology ; Polydipsia ; Teratoma*

Cerebral developmental venous anomaly (DVA) is generally benign. However, we have experienced two cases of DVA causing symptoms. In the first case, the patient demonstrated DVA with venous infarction. DVA was visualized in the arterial phase using digital subtraction angiography (DSA), and was diagnosed as arterialized DVA. The second case presented as transient right homonymous hemianopia. DSA revealed venous congestion; the transient aggravation of venous congestion may have caused the symptom. DSA is useful for diagnosing the pathomechanism of symptomatic DVAs.
Angiography, Digital Subtraction* ; Hemianopsia ; Humans ; Hyperemia ; Infarction

Neurological deficits commonly associated with anterior choroidal artery infarction (AChAI) include hemiplegia, hemisensory loss, and homonymous hemianopsia, while neuropsychological and perceptual deficits are uncommon. Prominent cognitive function impairment has rarely been reported. Here, we report a case of AChAI with prominent cognitive function impairment without motor deterioration. In contrast to the typical clinical features of AChAI, near complete and rapid motor recovery was observed, while cognitive impairment persisted despite rehabilitation therapy.
Cerebral Infarction* ; Hemianopsia ; Hemiplegia ; Internal Capsule ; Rehabilitation

Giant serpentine aneurysm(GSA) is a giant aneurysm containing a serpentine channel which enters and exits at separate sites and is continuous with the parent vessel. This 33-year-old man with a two-year history of frontal headache presented with bitemporal hemianopsia three months before admission. Suprasellar mass of computed tomography revealed a giant(3X2.5X2cm) mixed density, mimicking a brain tumor. Cerebral magnetic resonance images showed a flow void within the mass, and this was consistent with the serpentine vascular channel demonstrated by angiography. The aneurysm was revealed by surgery involving the frontobasal interhemispheric approach, left A1 & A2 were clipped and the mass of the aneurysm was removed in toto an aneurysmorrhaphy was constructed, and to preserve the distal blood flow to the left A2, the patient made an unevenful recovery.
Adult ; Aneurysm* ; Angiography ; Arteries* ; Brain Neoplasms ; Headache ; Hemianopsia ; Humans ; Parents

A case of cerebral paragonimiasis associated with right homonymous hemianopsia was reported in view of its rarity and a review of the related literaturs was made. The patient was 14 years old man. He had been suffering from poor visual acuity for 2 months and headache for 7 years. He had hsitory of indigestation of crayfish during measle infection. Skull x-ray revealed calcification on temporo-occipital region. He had been treated with bithionol, daily doses of 20mg/kg of body wt. for 70 days. And the rsult was improvement.
Adolescent ; Astacoidea ; Bithionol ; Headache ; Hemianopsia* ; Humans ; Paragonimiasis* ; Skull ; Visual Acuity

Charles Bonnet syndrome (CBS) can develop after trans-sphenoidal adenomectomy (TSA); however, the neural mechanisms remain unknown. Sensory deprivation and releasing phenomenon are both hypothetical explanations for this condition; however, there is no definite evidence that strongly supports either supposition. We report the first case of CBS after TSA without optic nerve atrophy. Postoperatively, the patient's vision seemed to be relatively well preserved, apart from the left-side hemianopsia in the right eye. Distinctive visual hallucinations only appeared when his eyes were closed, and these responded to quetiapine in a dose-dependent manner. Dose dependent change in colors and formation of hallucination was reported. Two weeks after quetiapine initiation, the patient's CBS was completely resolved. This unique case suggests that blocking sensory input from the periphery is more critical than neural damage of the bottom-up connection to the visual association cortex. In addition, quetiapine should be considered as a specific treatment for CBS.
Atrophy* ; Hallucinations ; Hemianopsia ; Optic Nerve* ; Quetiapine Fumarate ; Sensory Deprivation

OBJECTIVE: We evaluated a modified trans-middle temporal gyrus (MTG) approach with good postoperative visual preservation for patients with trigonal tumors. METHODS: Three patients with a trigonal tumor were treated via the modified trans-MTG approach guided by a neuro-navigator. Modified trans-MTG approach involve the incision at the MTG within 5 mm to the superior temporal sulcus. This approach makes a proper trajectory to the trigone but also reduces the retraction injury of MTG as little as possible to prevent postoperative visual field defect. Preoperative and postoperative visual field examination using perimetry was performed to evaluate the visual field. RESULTS: Three patients underwent surgery for lymphoma in the right trigone, meningioma in the left trigone, and focal enhancing nodule in the right paratrigonal area, respectively. In case of lymphoma, preoperative examination showed a left homonymous hemianopsia : one week later after surgery, a visual field examination was performed and revealed improvement of the visual field defect. In case of the meningioma, the preoperative examination showed no visual field defect : one month later, the visual field had no defect. In case of the enhancing nodule, preoperative visual field testing revealed a partial left homonymous hemianopsia. Visual examination within one month after surgery showed no visual field defect. All three patients treated with the modified trans-MTG approach showed no visual deterioration after surgery. CONCLUSION: The modified trans-MTG approach provides a safe and useful technique for trigonal tumors without postoperative visual field deterioration and affords adequate exposure of the trigonal tumor with a short trajectory.
Hemianopsia ; Humans ; Lymphoma ; Meningioma ; Visual Field Tests ; Visual Fields