41. Also any condition that causes significant depression of the nasal bridge or midface retraction can be associated with choanal atresia . 42. Choanal atresia or stenosis is a narrowing or absence of the choanae, the internal opening of the nasal passages. 43. In the GI and genitourinary systems, anal atresia , hypospadia ( misplaced urethra ), and hydronephrosis may exist. 44. The medical terms for Lauren's condition are an L-transposition of the great arteries and mitral valve atresia . 45. Aaron and Nichole Brandon, suffered from a condition called biliary atresia , an absence of bile ducts in the liver. 46. Another theory states that menopause is the byproduct of the evolutionary selection for follicular atresia , a factor that causes menopause. 47. In April 2015 Annalise Dapo became the first patient in the United States to have their esophageal atresia corrected using magnets. 48. Atresia patients who opt for surgery will temporarily have the canal packed with gelatin sponge and silicone sheeting to prevent closure.49. The same year he was awarded Doctor of Philosophy degree for his dissertation titled " The aetiology of congenital intestinal atresia ". 50. The adrenal glands often appear as small oval discs pressed against the esophageal and duodenal atresia , and a single umbilical artery.
