Skip to main content Skip to navigation
We care about your privacy. Read about your rights and how we protect your data. Get Details

Kaposiform Hemangioendothelioma with Kasabach-Merritt Syndrome

Kaposiform hemangioendothelioma is a rare, aggressive vascular skin, tissue and bone tumor found in children. It’s characterized by nodules and sheets of spindle cells that become warped in the extremities, chest and abdomen causing the blood vessels to expand. Although a relatively rare condition, the increasing number of reports on kaposiform hemangioendothelioma in infants and children is often complicated by rapidly growing lesions, also known as Kasabach-Merritt syndrome (KMS).

Children's Team

Children's Team


Our Stories

Our Stories

finn teaser 1

Finn's Story

When Finn was born, his parents and doctors immediately knew something was wrong. Finn’s left leg was swollen to the size of an adult head, and it continued to swell at an alarming rate.



Blood Disorders (Hematology)

From sickle cell disease to histiocyte disorders, Children’s National delivers expert care for any blood disorder diagnosis.

General and Thoracic Surgery

The pediatric surgical experts at Children’s National in Washington, D.C., provide advanced, comprehensive surgical care for infants, children and teenagers.

Plastic and Reconstructive Surgery

Our team of pediatric plastic surgeons have dedicated their careers to plastic surgery procedures for babies, children and teens.

Orthopaedic Surgery and Sports Medicine

From sprains and strains to complex congenital conditions, Children’s National Hospital offers one of the most experienced pediatric orthopaedic practices in the nation with experience in treating all areas from head to toe.