Vascular anomalies are a group of disorders divided into two distinct subtypes: vascular tumors and vascular malformations. Vascular tumors are proliferative in nature, while malformations are non-proliferative. Simple, localized vascular malformations refer to a group of malformations that are localized to a single area of involvement. These simple malformations include capillary, lymphatic, venous, and arteriovenous malformations. The pediatric hematologist and oncologist is becoming increasingly involved in the diagnosis and management of these disorders. This review presents four cases as a means to discuss the diagnosis, clinical and imaging features, and management strategies of simple, localized vascular malformations.

Acknowledgements:The authors would like to thank the contributions of Michael Miller, MD, Laura Havrilesky, MD MHSc, Sarah Ellestad, MD, Brita Boyd, Mustafa Bashir, MD, Megan Varvoutis, MD, and Isabel V. Rodriguez MD. The latter contributed to data collection and integrity.Data from this manuscript were presented as an oral presentation at Society for Gynecologic Oncology (SGO) Annual Meeting, Scientific Plenary V: Operations Matter, on March 19, 2019 in Honolulu, HI