What is a common adverse effect after esophageal dilation?

• A. Permanent chest pain requiring hospitalization.
• B. Temporary chest or neck discomfort, transient odynophagia or reflux, and a small risk of mucosal tear or perforation.
• C. No risk of complications.
• D. Severe bleeding requiring transfusion.

Answer: (B)

Dilation of the esophagus is typically well tolerated, with the most common adverse effects being mild and temporary. After the procedure, patients often notice chest or neck discomfort for a short while, along with transient pain on swallowing (odynophagia) or some reflux. There is also a small risk of mucosal tear or even perforation, but these are uncommon. Serious problems like permanent chest pain requiring hospitalization or severe bleeding needing a transfusion are not typical outcomes of routine dilation. The main idea is that the usual experience is short-lived discomfort and minor irritation, with rare risks of more significant injury.