Sir.—Redundancy of the skin of the neck is found in various chromosomal and nonchromosomal syndromes.1,2 We recently saw a newborn male infant with redundant skin of the neck in whom primary hypothyroidism was diagnosed on routine newborn blood screening. Primary hypothyroidism has not, to our knowledge, been previously associated with this physical finding.
Patient Report.—A 3425-g male infant, the product of a 42-week gestation, was born to a 30-year-old mother. Pregnancy was unremarkable, and the mother denied use of alcohol, drugs, or tobacco. Labor was complicated by fetal bradycardia, and delivery was performed using low forceps. Apgar scores were 9 at one minute and 10 at five minutes. Physical examination at birth revealed a head circumference of 35.5 cm, a length of 50 cm, and a weight of 3425 g (all 50% of normal). The hair was coarse, and the head was of normal shape, with normal