A term male infant is born at 39 weeks of gestation via spontaneous vaginal delivery to a 35-year-old gravida 2, para 2 woman; she had been diagnosed with hypothyroidism and adequately treated with levothyroxine. At delivery, the infant is vigorous and does not require resuscitation. His birthweight is 3,595 g (69th percentile), length is 48 cm (20th percentile), and head circumference is 35 cm (75th percentile). On the first day after birth, the infant undergoes an initial examination. The parents note a bony “bump” on the back of his head, which does not appear to be painful. He has been able to breastfeed since birth and has been active. The parents have no other concerns. The infant’s vital signs are within normal limits. On examination, the head appears normocephalic. The anterior fontanel is open, flat, and soft. He has normal coronal, sagittal, and lambdoid sutures. A bony 1- to 2-cm...
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May 2022
