Malformaţii venoase de buză inferioară, gingivale și la nivelul membrului superior drept-prezentare de caz.

The International Society for the Study of Vascular Anomalies (ISSVA) has devised a classification system. The most recent version of this classification system was published in 2018. This classification appears widely used and splits vascular malformations into high- and low-flow lesions. The high-flow lesions are further subdivided into arteriovenous malformations (AVM) and arteriovenous fistulas. Low-flow lesions are subdivided into capillary malformations (CM), venous malformations (VM) and lymphatic malformations (LM). The ISSVA classification then describes mixed lesions; for example, lymphovenous malformations. It also has a category for vascular tumors. There are benign vascular tumors, also known as hemangiomas, local aggressive, or malignant tumors. [ABSTRACT FROM AUTHOR]