II. Epidemiology
- Incidence: 33-40% of newborns
III. Pathophysiology
- Persistent fetal vessels
- Dilated dermal capillaries (telangiectases)
IV. Differential Diagnosis
-
Port-Wine Stain (Nevus Flammeus)
- Contrast with Nevus Simplex which is typically bilateral
V. Signs
- Flat, pink (or salmon colored) vascular patch
- Blanch on compression
- May become more prominent with crying
- Distribution and Course: Often symmetric - involving the bilateral face
VI. Management
- No intervention typically needed as these resolve spontaneously in most cases
- Most lesions by 18 months (many lesions resolve while still newborns)
- Flash-Lamp pumped pulse dye laser (FPDL) in persistent cases
