نتایج جستجو برای: brain malformation
تعداد نتایج: 486518 فیلتر نتایج به سال:
The thyroperoxidase (TPO) enzyme is expressed by the thyroid follicular cells and required for hormone synthesis. In turn, hormones are essential brain development, thus inhibition of TPO in early life can have life-long consequences function. If environmental chemicals with capacity to inhibit vitro also alter development vivo through dependent mechanisms, however, remains unknown. this study ...
BackgroundThe coexistence of falcine and occipital sinuses is rare its natural course has not been reported.Case reportsTwo patients with persistent are described. Both had straight sinuses. In one, both the transverse sigmoid were hypoplastic patient an acquired Chiari I malformation. The other no venous anomalies a normal posterior cranial fossa.ConclusionThe can lead to These cases suggest i...
Introduction: Retinal arterio-venous malformations (AVMs) are rare, congenital, high-flow congenital developmental vascular anomalies without intervening capillary bed also known as racemose angioma, They unilateral, nonhereditary lesions located anywhere in retina and may involve optic nerve.
 Case report: A 55 year old male was found to have abnormal malformation over nerve head his left...
BACKGROUND AND PURPOSE Race/ethnicity is associated with overall incidence of intracranial hemorrhage (ICH), but its impact in patients with brain arteriovenous malformation is unknown. We evaluated whether race/ethnicity was a risk factor for ICH in the natural course in a large, multiethnic cohort of patients with brain arteriovenous malformation followed longitudinally. METHODS Data were c...
Epileptic seizures are a common presentation in patients with newly diagnosed brain arteriovenous malformations, but the pathophysiological mechanisms causing the seizures remain poorly understood. We used magnetic resonance imaging-based quantitative cerebrovascular reactivity mapping and conventional angiography to determine whether seizure-prone patients with brain arteriovenous malformation...
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