Vascular anomalies represent a spectrum of disorders from a simple “birthmark” to life-
threatening entities. Incorrect nomenclature and misdiagnoses are commonly experienced
by patients with these anomalies. Accurate diagnosis is crucial for appropriate evaluation
and management, often requiring multidisciplinary specialists. Classification schemes
provide a consistent terminology and serve as a guide for pathologists, clinicians, and
researchers. One of the goals of the International Society for the Study of Vascular …