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congenital vascular anomalies

Monday 14 March 2005

Types (ISSVA classification) (International Society for the Study of Vascular Anomalies)

- vascular tumors

- vascular malformations

  • simple vascular malformations (fast flow)
    • aneurysm, ectasia, stenosis
    • arteriovenous fistula (AVF)
    • aretrionvenous malformation (AVM)
  • combined vascular malformations
    • AVF
    • AVN
    • CVM
    • CLVM
    • LVM
    • CAVM
    • CLAVM

The International Society for the Study of Vascular Anomalies (ISSVA) divides congenital vascular anomalies into malformations and tumors and subclassified hemangiomas under tumors.

Particularly troublesome is the use of the term hemangioma, commonly used to describe a variety of vascular lesions (both malformations and tumors).


- Al-Adnani M, Williams S, Rampling D, Ashworth M, Malone M, Sebire NJ. Histopathological reporting of paediatric cutaneous vascular anomalies in relation to proposed multidisciplinary classification system. J Clin Pathol. 2006 Dec;59(12):1278-82. PMID: 16751300

- North P and Kozakewich H. Vascular malformations and tumors in children. Society for Pediatric Pathology, 2004 meeting.

- Hand JL, Frieden IJ.Vascular birthmarks of infancy: resolving nosologic confusion.Am J Med Genet. 2002 Apr 1;108(4):257-64. PMID: 11920828