PHACE Syndrome: A Patient Guide

PHACE syndrome is a rare neurocutaneous or developmental association of uncertain cause where a baby is born with, or soon develops, a characteristic red birthmark—an infantile hemangioma—that serves as a visible marker for potential differences in the body’s internal structures ^[1][2]. This condition is not a disease that “spreads” from the skin to the organs; rather, it is a developmental pattern where the skin, brain, heart, and eyes were all affected at the same time while the child was developing in the womb ^[1]. Because these different systems are linked, the discovery of a large or segmental hemangioma on the face, neck, or scalp acts as a signal for doctors to look beneath the surface to ensure the rest of the body is functioning safely ^[3].

The name PHACE itself is a helpful roadmap for both parents and medical teams, as each letter represents a specific “domain” that requires evaluation. The acronym stands for Posterior fossa (brain structure), Hemangioma, Arterial (blood vessel) anomalies, Cardiac (heart) differences, and Eye or Sternal findings ^[4]. While many children only have one or two of these features, the presence of the birthmark prompts a baseline workup—including specialized imaging like MRIs and heart ultrasounds—to identify any internal differences early in life ^[5]. This proactive approach allows the medical team to address any potential issues before they cause symptoms, ensuring that the child’s growth and development are well-supported ^[3][6].

While the bright red hemangioma is often the most visible and concerning feature for parents initially, the long-term focus of PHACE syndrome care shifts toward the “hidden” structures, particularly the blood vessels of the brain and the heart ^[7]. These internal areas require the most attention because they can change as a child grows, necessitating a personalized plan for long-term follow up ^[8]. Managing these complexities is a team effort, involving a multidisciplinary care team of specialists—such as neurologists, cardiologists, and dermatologists—who work together to create a personalized care plan tailored to each child’s unique anatomy ^[3].

Living with PHACE syndrome means moving from a period of early discovery and intensive testing into a steady rhythm of surveillance and support. Some children require only limited surveillance while others need multiple specialists. Most children with this condition lead full, active lives and meet their developmental milestones with the help of their dedicated care teams ^[7]. By staying connected to specialists who understand the nuances of the syndrome, families can navigate the journey from infancy through adulthood with confidence, focusing on the child’s overall health and well-being beyond the visible birthmark ^[8][9].

Please note: This guide supports—but does not replace—individualized medical advice from your child’s care team.