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Updated: Jun 15, 2025

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Published on: June 15, 2020
Venous Anomalies in Overgrowth Syndromes
Jose Santiago1, Gulraiz Chaudry1
1Division of Interventional Radiology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115.
Abstract:
Overgrowth syndromes, particularly within the PIK3CA-related overgrowth syndrome (PROS) spectrum, are commonly associated with venous anomalies. The anomalies include spongiform venous malformations and persistent embryonic veins, such as the lateral marginal vein (of Servelle). The anomalous veins pose a significant risk of thromboembolic disease and should be occluded, preferably earlier in life. A thorough understanding of the conditions, anatomy, and interdisciplinary treatment of these complex anomalies is essential for optimal management. This review explores the clinical and imaging diagnosis of overgrowth syndromes and techniques for assessing and treating associated venous anomalies, particularly the endovenous closure of anomalous veins.
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