Case 168


A 28-year-old expectant woman, with 30 weeks and 3 days of pregnancy, did the third trimester ultrasound, which showed a cystic formation at the midline of the head. At birth, a transfontanellar ultrasound revealed a vascular round formation with continuous flow; an angioresonance was then performed. The newborn was stable all the time, without signs of neurological or cardiac impairment, and conservative management was suggested. However, at the age of 2 months, had a growth at the cephalic perimeter of 8cm, demanding a brain computed tomography and the surgical treatment was recommended.

Based on the clinical picture and the images, which one of the following is the most likely diagnosis?

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