[Clinical and surgical aspects of cervicofacial lymphangiomas and hemolymphangiomas].

After an embryological review, the author describes the macroscopic and surgical aspects of cervicofacial lymphangiomas and hemolymphangiomas. Therapeutic difficulties are variable and are discussed with regard to different clinical forms. There are all degrees between benign forms which are easy to treat and major forms which raise difficult therapeutic problems because of their extent. These severe forms may threaten the vital prognosis by virtue of their own complications but also because of their excision. Lymphangiomas, or rather hemolymphangiomas, are a complex vascular malformation diagnosed most often shortly after birth, the treatment and surgical excision of which are often delicate, possibly influencing not only the functional prognosis but also the vital prognosis.