Right-sided hydronephrosis secondary to swallowing a headscarf pin.

A majority of foreign objects ingested pass through the gastrointestinal tract without any complications. Sometimes, complications such as perforation and adhesions of the neighboring organs occur and surgical treatment becomes necessary. We report the case of a 22-year-old female who was admitted with right flank pain. Past medical history revealed that the patient had accidentally swallowed a headscarf pin 11 months earlier. A computed tomography scan confirmed the swallowed foreign body posterior to and around the ileocecal region. The headscarf pin, causing stenosis and proximal ureteral dilatation, was removed surgically. To the authors' knowledge there has been no previous report of such ureteral obstruction published in the English literature.