Port-wine Birthmarks: Update on Diagnosis, Risk Assessment for Sturge-Weber Syndrome, and Management

Area of Science:

• Neurocutaneous disorders
• Vascular anomalies
• Pediatric dermatology

Background:

• Sturge-Weber syndrome (SWS) is a neurocutaneous disorder characterized by vascular anomalies in the skin, eyes, and brain.
• Facial port-wine birthmarks (PWBs) were historically linked to SWS based on trigeminal nerve distribution.
• Recent research reclassifies PWBs as vascular in origin, shifting risk assessment for SWS.

Purpose of the Study:

• To review facial PWB locations associated with neurological and ophthalmological complications of SWS.
• To discuss differential diagnoses for facial vascular birthmarks.
• To highlight the benefits of early pulsed dye laser therapy for PWBs and provide resources for pediatricians.

Main Methods:

• Literature review focusing on embryologic origins of PWBs and SWS risk factors.
• Analysis of PWB locations and their correlation with SWS neurological and ophthalmological sequelae.
• Synthesis of current treatment modalities, emphasizing early intervention with pulsed dye laser therapy.

Main Results:

• Facial PWBs on the forehead are associated with the highest risk of SWS brain involvement.
• PWBs involving the upper or lower eyelids increase the risk of developing glaucoma, requiring lifelong monitoring.
• Early intervention with pulsed dye laser therapy is the gold standard for PWB treatment, offering significant advantages when initiated in infancy.

Conclusions:

• Identifying specific facial PWB locations is crucial for assessing SWS risk and potential complications.
• Prompt ophthalmological evaluation and monitoring are essential for PWBs near the eyelids to detect glaucoma early.
• Early pulsed dye laser treatment for PWBs can improve outcomes and should be considered, with resources available to support affected families.