Differential gallbladder contractility in fundal adenomyomatosis: demonstration by cholecystokinin cholescintigraphy.

The cholecystokinin cholescintigraphic findings of fundal adenomyomatosis in a 29-yr-old male with severe post-prandial pain are presented. Planar cholescintigraphy demonstrated a trilobed gallbladder contour. Following the administration of 0.02 micrograms/kg of cholecystokinin at maximal gallbladder filling, fundal dyskinesia was observed. Regional gallbladder ejection fractions were: whole gallbladder, 43%; proximal two-thirds of the gallbladder, 70%; and gallbladder fundus, 32%. First harmonic Fourier phase and amplitude images demonstrated: (a) decreased fundal amplitude values, and (b) a phase shift of the pixels in the gallbladder fundus.