Prolonged retention of a swallowed foreign body in the stomach following pyloromyotomy.

An unusual case of prolonged retention of a swallowed, round-shaped, magnet tack in the stomach of a patient is reported. The patient had had a previous pyloromyotomy for pyloric stenosis. Patients with a history of pyloromyotomy for pyloric stenosis may present special problems for the passage of foreign bodies reaching the stomach and may be more likely to require surgical intervention.