JBR-BTR : organe de la Société royale belge de radiologie (SRBR) = orgaan van de Koninklijke Belgische Vereniging voor Radiologie (KBVR)
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Supravalvar aortic stenosis (SVAS) is a form of congenital left ventricular outflow tract (LVOT) obstruction that occurs as a localized or diffuse narrowing of the ascending aorta beyond the superior margin of the sinuses of Valsalva. SVAS is a rare progressive congenital heart defect with a higher risk of sudden cardiac death. ⋯ CT and MRI angiography and eventual arteriography confirmed the diagnosis by showing a narrowing of the aorta at the sinotubular junction with significant accelerated flow. This stenosis was eventually surgically corrected with no complications.
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We report two very unusual observations in which gas and fluid effusions were transiently and unexpectedly found in the extravertebral spaces of patients presenting with painful necrotic vertebral collapse containing a vacuum cleft. We hypothesize that gas and/or fluid which progressively may replace vacuum in vertebral compression fractures could be secondarily pumped through extravertebral and retroperitoneal spaces. Although being rare, these observations may represent a potential missing link in the imaging snapshots of the cyclic and dynamic vacuum phenomenon.
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We report a case of sudden onset of respiratory distress caused by pulmonary edema due to laryngospasm. The diagnosis was established by the clinical context and chest X-ray. A CT-scan was performed to narrow down the differential diagnosis and to confirm the diagnosis. Postextubation pulmonary edema due to laryngospasm is a rare entity with a typical clinical and radiographic presentation.