In Queens, New York, little Sandy Diaz was born with a massive lymphatic malformation that grew uncontrollably on her right cheek and neck until it reached nearly the size of her own head. The growth blocked her airway and forced her to be fed through tubes.

After non-surgical treatments failed to reduce the mass, an elite surgical team at Lenox Hill Hospital, led by Dr. Milton Waner and Dr. Teresa O, took on the challenge of operating.

In a marathon and delicate procedure lasting more than eight hours, with advanced neurological monitoring, the specialists successfully removed approximately 95–98% of the tumor while carefully protecting her facial nerves. The surgery allowed Sandy to begin breathing and feeding more independently, giving her family a genuine miracle of life.

Lymphatic malformations are non-cancerous collections of abnormal lymph vessels that can expand and compress vital structures. When located in the head and neck, they often threaten breathing and feeding and require highly specialized surgical expertise. Drs. Waner and O, recognized authorities in vascular anomalies, used precise nerve-mapping techniques to minimize the risk of facial paralysis during the complex dissection around critical vessels and nerves.

Sandy’s recovery progressed steadily in the years that followed. Follow-up care addressed remaining small cysts, and she gradually gained the ability to eat, speak, and move more freely. Her story stands as a powerful example of what advanced pediatric vascular surgery can achieve when skill, technology, and determination come together.

Sources

• Contemporary news reports on Sandy Diaz (Queens, New York), including her diagnosis of a massive lymphatic malformation, failed non-surgical treatments, and the 2016 multi-hour surgery at Lenox Hill Hospital performed by Dr. Milton Waner and Dr. Teresa O that removed the vast majority of the mass (New York Daily News, NBC New York, ABC7, 2016–2019).
• Clinical background on lymphatic malformations of the head and neck and the specialized surgical approaches used by the Vascular Birthmark Institute team.