نتایج جستجو برای: venous anomaly
تعداد نتایج: 109446 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE The risk of hemorrhage in the context of developmental venous anomaly is considered to be very low, but it has never been evaluated by susceptibility-weighted MR imaging at 3T. The goal of the present study was to evaluate the prevalence of hypointense foci (ie, microhemorrhage or cavernous malformation) associated with DVA on phase-sensitive MR imaging, on the basis of p...
BACKGROUND AND PURPOSE Developmental venous anomalies are the most common intracranial vascular malformation. Increased signal-intensity on T2-FLAIR images in the areas drained by developmental venous anomalies are encountered occasionally on brain imaging studies. We evaluated diffusion and perfusion MR imaging findings of the abnormally high signal intensity associated with developmental veno...
BACKGROUND A partial anomalous pulmonary venous connection is a rare congenital defect in which blood from the pulmonary vein is returned to the right atrium. Asymptomatic patients with a partial anomalous pulmonary venous connection with a small left-to-right shunt do not require surgical treatment. If such patients require a major lung resection, the surgical procedure could precipitate fetal...
Bilateral absence of the superior vena cava (SVC) is a very rarely detected, mainly asymptomatic congenital vascular anomaly. Though usually innocent, this anomaly may complicate cardiothoracic surgery and certain procedures like central venous catheter insertion. This SVC anomaly is poorly known, and we assume that its incidence in the general population may be higher than detected. In this pa...
existed with the pulmonary venous anomaly was considered. Resection of the left lower lobe was contemplated. Based upon careful palpation of the entire lung and presumptive evidence that the preoperative roentgenogram and the operative findings coincided, the decision not to resect was made. Delayed postoperative pulmonary angiography (Fig 2) confirmed the validity of this decision. Anomalies o...
BACKGROUND The association of venous angiomas or developmental venous anomalies (DVA) with transient neurological deficit is rare. We present a rare case of a cerebellar developmental venous anomaly resulting in transient neurological deficits. CASE DESCRIPTION A 58-year-old man with recurrent left sided facial dysesthesia, hemiparesis, and mild difficulty ambulating after exercise. A similar...
Pial arteriovenous fistula (AVFs) are a rare, although clinically significant, vascular anomaly affecting the pediatric population, consisting of high-flow connection between one or more pial arteries and venous. In children, clinical presentation varies according to age, can present with high output cardiac failure, macrocrania, neurodevelopmental delay, seizures, venous infarctions due stenos...
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