Which condition is not typically associated with infant reflux?

Cystic fibrosis is not typically associated with infant reflux. Cystic fibrosis is a genetic disorder that primarily affects the lungs and digestive system, characterized by the production of thick and sticky mucus. While gastrointestinal complications are common in cystic fibrosis, including pancreatic insufficiency and bowel obstruction, the specific mechanism of reflux is not a characteristic feature of this condition.

In contrast, pyloric stenosis involves a narrowing of the pylorus, which can lead to projectile vomiting, sometimes mistaken for reflux. Eosinophilic esophagitis is an allergic condition that can lead to inflammation of the esophagus and may result in reflux-like symptoms due to difficulty swallowing and food impaction. Gastroesophageal disease encompasses a range of issues related to reflux and is directly linked to problems in the esophagus and stomach function.

Thus, the distinction lies in understanding that while cystic fibrosis presents with various complications, it does not typically lead to the conditions associated with infant reflux as directly as the other options do.