血管瘤和脉管畸形是口腔颌面部常见病变。随着近年对这类疾病的研究增多和认识的深入 ,Mul liken等提出脉管病变的生物学分类系统 ,本文简要介绍该分类 ,以供临床参考 Hemangiomas and vascular malformations are common lesions in oral and maxillofacial regions. With the increasing researches on such diseases in recent years and their further understanding, Mulliken proposed the biological classification system of vascular lesions. This article briefly introduces the classification for clinical reference