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Choanal atresia and athelia: methimazole teratogenicity or a new syndrome?

F Greenberg1

  • 1Department of Pediatrics, Baylor College of Medicine, Houston, Texas.

An infant girl with choanal atresia, athelia, minor anomalies, and mild to moderate mental retardation was born to a woman treated for hyperthyroidism throughout pregnancy with methimazole and propranolol. The patient's defects may be due to methimazole teratogenicity or could represent a previously undescribed syndrome affecting ectodermal structures.

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