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contentuptodate· Content· item f19_19_19761

©2013 UpToDate ® Print Email Sphincter of oddi manometry Example of a paradoxical basal sphincter of Oddi (SO) pressure elevation following the intravenous administration of cholecystokinin-octapeptide (20 ng/kg). Normally, CCK reduces SO basal pressure. This finding suggests possible denervation of the sphincteric zone. Courtesy of Walter J Hogan, MD.