Vascular Anomalies: Other Vascular Tumors.

Vascular tumors are classified into three categories by the International Society for the Study of Vascular Anomalies (ISSVA): benign, locally aggressive/borderline, and malignant. Many of these tumors are rare, cutaneous in nature, and present in childhood. The characterization and delineation of these distinct vascular tumors is an evolving area of clinical research. The diagnosis of these lesions relies on history and clinical presentation, location, histologic appearance, immunohistochemistry, and more recently, associated genetic mutations. This article provides a brief, yet comprehensive overview of all cutaneous vascular tumors currently recognized by the ISSVA, including presentation, diagnosis, and treatment.