Abstract: [Summary] Hemangiomas and vascular malformations are a complex group of lesions developed from the vascular system. Infantile hemangiomas are vascular neoplasms due to the proliferation of endothelial cell and are the most common vascular tumours of infancy. Vascular malformations are the results of abnormal development of the vascular system during embryogenesis and more than 60% of them are localized in the head and neck regions. Vascular anomalies may cause severe facial deformity and dysfunction. Sclerotherapy is a commonly used method for the treatment of vascular anomalies. The documented sclerosing agents included pingyangmycin, bleomycin, absolute ethanol, OK-432 (picibanil), doxycycline, sodium tetradecyl sulfate, and ethanolamine oleate. In recent years, a domestic produced sclerosant named polidocanol have been widely used in the treatment of vascular anomalies. The development of foam sclerotherapy technique has promoted its clinical application of lauromacrogol and the efficacy and safety of foam sclerotherapy has been proved by a large number of studies in the treatment of vascular anomalies. In order to standardize the application of these new detergent sclerosants, we established this expert consensus. This protocol will be renewed and updated based on the newest published literatures and clinical experiences, and provide further guidance for clinicians involving in this specialty.

Key words: Oral and maxillofacial region；Hemangiomas；Vascular malformations；Polidocanol；Lauromacrogol, Foam sclerotherapy