I stumbled across this article while previewing JAMA & Archives CME articles (full reference below). The article gives an overview of lymphatic malformations, noting that both sexes are equally affected, and there is no predilection for any race.
Lymphatic malformations are vascular malformations with an unknown cause. They are estimated to make up 6% of all benign soft-tissue tumors in children. While they may be rare, 50% of all lymphatic malformations are already obvious at the time of birth. Most (90%) are diagnosed by the end of the second year of life owing to clinical symptoms.
About 60% of all lymphatic malformations are found in the head and neck region. Regarding the mouth, the tongue is most commonly affected.
*This blog post was originally published at Suture for a Living*