Unexpected gallbladder emptying from visual stimulation: controlling sensory factors in hepatobiliary scintigraphy.

摘要

Unexpected (without deliberate stimulation) emptying of a gallbladder (GB) during hepatobiliary scintigraphy is rare. Such a case is presented where the patient was watching a movie that contained episodes of appetizing meal preparation and consumption. The photic stimulation was recognized and discontinued, resulting in the GB refilled after a 15-minute wait. The GB ejection fraction was then obtained after cholecystokinin stimulation and was similar to unexpected emptying. In conclusion, it is prudent to limit all possible stimulating factors during hepatobiliary scintigraphy, including thought, sight, smell, taste, mastication, and swallowing of food.