Final answer:
Esophageal atresia isn't associated with oligohydramnios, a condition characterized by a deficiency of amniotic fluid. Oligohydramnios is related to conditions such as renal agenesis, urethral atresia, pulmonary hypoplasia and amnion nodosum.
Step-by-step explanation:
All of the following conditions are associated with oligohydramnios, except for Esophageal atresia. Oligohydramnios refers to a condition in pregnancy characterized by a deficiency of amniotic fluid. Potential causes include renal agenesis, where the fetus is missing one or both kidneys; urethral atresia, which is a block in the urethra that prevents the baby from passing urine into the amniotic fluid; and, pulmonary hypoplasia, where the lungs do not develop properly. Further, Amnion nodosum, a condition where nodules form on the fetal surface of the placenta, can also occur as a result of prolonged oligohydramnios.
Esophageal atresia, however, refers to a congenital medical condition which affects the alimentary tract and causes the esophagus to terminate before it reaches the stomach. Therefore it's not related to the amount of amniotic fluid or the conditions of oligohydramnios.
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