A nurse is assessing a newborn who was born vaginally with vacuum extractor assistance.The nurse notes swelling over the newborn's head that crosses the suture line.The nurse should identify the swelling as which of the following findings?

Choice A rationaleNevus flammeus is a capillary malformation, presenting as a flat, purple-red birthmark that does not cause swelling or cross suture lines, distinguishing it from caput succedaneum.Choice B rationaleCaput succedaneum involves swelling of the scalp caused by pressure during delivery, often crossing suture lines due to subcutaneous fluid accumulation, a hallmark distinguishing it from other neonatal head conditions.Choice C rationaleCephalohematoma is a subperiosteal hemorrhage limited by suture lines, making it distinct from caput succedaneum, which crosses suture lines and involves diffuse subcutaneous swelling.Choice D rationaleErythema toxicum is a benign, blotchy skin condition in neonates that does not affect the scalp or cause swelling, further distinguishing it from conditions related to traumatic delivery.