The cystic duct sign during morphine-augmented cholescintigraphy.
Visualization of a "dilated cystic duct" during standard hepatobiliary imaging represents a potential source of false-negative cholescintigraphy. Intravenous morphine, commonly used to shorten study time and improve the specificity of hepatobiliary imaging, may, by virtue of its pharmacologic/physiologic actions, accentuate the appearance of a "dilated cystic duct." We present a case of transient cystic duct visualization following morphine administration in a patient with an obstructing cystic duct calculus.
Department of Radiology, New England Medical Center Hospitals, Boston, Massachusetts 02111.
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D000328:Adult; D000814:Aniline Compounds; D002769:Cholelithiasis / Q000000981:diagnostic imaging*; D001651:Cholestasis, Extrahepatic / Q000000981:diagnostic imaging*; D003549:Cystic Duct / Q000000981:diagnostic imaging*; D005188:False Negative Reactions; D005260:Female; D005704:Gallbladder / Q000000981:diagnostic imaging*; D005998:Glycine; D006801:Humans; D007098:Imino Acids; D008099:Liver / Q000000981:diagnostic imaging; D009020:Morphine; D015609:Organotechnetium Compounds; D011877:Radionuclide Imaging
D000814:Aniline Compounds; D007098:Imino Acids; D015609:Organotechnetium Compounds; D009020:Morphine; C034837:technetium Tc 99m mebrofenin; D005998:Glycine