Vascular Tumors/Birthmarks

Abstract

Abstract"Vascular anomalies" encompass a heterogeneous group of vascular lesions, of unclear etiology and often with unpredictable behavior. Patients with vascular anomalies represent a unique population, in that they have focal (or generalized) aberrations of vascular development (in vascular malformations) or vascular proliferation (in vascular tumors). The etiology of these disorders is yet unclear, and likely represents a multifactorial process, although new discoveries into the genetic and molecular bases of these disorders have dominated the past decade.