Radiographic Findings Associated with Vascular Anomalies

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Imaging of patients with vascular tumors and malformations has been sufficiently refined to answer pertinent questions when making treatment decisions in this challenging subgroup of pediatric patients. The imaging modalities at hand include conventional radiography, Doppler ultrasound, and magnetic resonance imaging with time-resolved, contrast-material enhanced magnetic resonance angiography. This review article will focus on the characteristic imaging features of some focal and diffuse vascular lesions, which have been classified by their clinical history and physical exam, and further labeled as a vascular tumor or slow-flow versus high-flow vascular malformation based on the updated classification system proposed by the International Society for the Study of Vascular Anomalies. The recent advances in knowledge regarding the biology of these vascular anomalies have led to increased awareness of the current nomenclature. Moreover, with better understanding of the imaging features, the radiologist has become a key player in the multidisciplinary approach offered at various institutions where appropriate treatment algorithms and interventional strategies are put together. This is crucial in avoiding misdiagnosis and improper management.

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