Vascular malformations of the small intestine manifesting as chronic anemia: Two pediatric cases managed by single-site umbilical laparoscopic surgery.

•Vascular malformation of gastrointestinal tract manifested as a chronic anemia due to obscure gastrointestinal bleeding in girls.•Vascular malformation of the small intestine in pediatric patient is uncommon finding.•Despite of limitations of diagnosis, a selective angiography and CT enterogram with angiography was helpful to diagnose.•Successfully managed two cases of vascular malformation identified at jejunum by a single-site umbilical laparoscopic surgery.