A term female infant is born via spontaneous vaginal delivery to a gravida 5 para 4 mother at 38 weeks and 4 days of gestation. The prenatal course was uncomplicated, with unremarkable results on screening serologies. The infant cries at the perineum. Resuscitation is routine, with the infant receiving only warm, dry stimulation and bulb suctioning.

On physical examination, clinicians note an erythematous 2-cm mass protruding from the maxillary gum line (Figs 1 and 2). The firm mass appears to be attached to the maxillary alveolus from a wide stalk and is not easily moved. The surface of the mass glistens and vasculature is clearly visible. The remainder of the physical examination yields unremarkable results. The infant has a vigorous cry and lung sounds are clear to auscultation throughout. There are no signs of respiratory distress, including tachypnea, retractions, or nasal flaring.

Because she is able to maintain...

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