Snapshot A newborn boy is born to a young mother via a normal spontaneous vaginal delivery. She had not had any prenatal care during her pregnancy. On physical exam, the newborn has a large port-wine stain on the left forehead and eyelid. He is also noted to have some shaking episodes. Concerned, the physician obtains an MRI of the head, which shows a leptomeningeal angioma. Introduction Clinical definition login to view 9 more bullets Associated conditions login to view 6 more bullets Epidemiology Demographics login to view 1 more bullet Genetics login to view 5 more bullets Presentation Symptoms login to view 4 more bullets Physical exam login to view 2 more bullets Imaging Magnetic resonance imaging (MRI) with gadolinium login to view 5 more bullets Computed tomography (CT) login to view 4 more bullets Differential Klippel-Trenaunay-Weber syndrome login to view 3 more bullets DIAGNOSIS Making the diagnosis login to view 1 more bullet Treatment Medical login to view 3 more bullets Non-operative login to view 3 more bullets Complications Neurological deficits from seizures Blindness