Joseph Ramagnulo, MD, MSc, FRCPC, Associate Professor Gastroenterology and Hepatology, Medical University of South Carolina, discusses abdominal pain that cannot be diagnosed and a study he is coducting to determine if, in some cases, it can be explained by Sphincter of Oddi dysfunction.

Related Reading
Measuring episodic abdominal pain and disability in suspected sphincter of Oddi dysfunction.
Durkalski V, Stewart W, MacDougall P, Mauldin P, Romagnuolo J, Brawman-Minzter O, Cotton P. World J Gastroenterol. 2010 Sep 21;16(35):4416-21.

Sphincter of Oddi dysfunction.
Baillie J. Curr Gastroenterol Rep. 2010 Apr;12(2):130-4.

Sphincter of Oddi: Function, dysfunction, and its management.
Toouli J. J Gastroenterol Hepatol. 2009 Oct;24 Suppl 3:S57-62. Review.