<s>[INST] <<SYS>> This is a medical question of type : inheritance <</SYS>> Is esophageal atresia/tracheoesophageal fistula inherited ? [/INST] When EA/TEF occurs as a feature of a genetic syndrome or chromosomal abnormality, it may cluster in families according to the inheritance pattern for that condition. Often EA/TEF is not inherited, and there is only one affected individual in a family. </s>