PMC3745634_01
Tc-99m Mebrofenin hepatobiliary radionuclide scan showing gallbladder located in the suprahepatic region
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F1
The scan showed an intense focus of tracer uptake in relation to the upper border of the right lobe of the liver [Figure 1a], which became visible within 15 min of Tc-99m Mebrofenin injection. A Tc99-m sulfur colloid SPECT transverse section showed gallbladder in suprahepatic location [Figure 1b].
Tc99-m sulfur colloid SPECT transverse section with arrow showing the gallbladder in suprahepatic location
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F2
A subsequent MRCP [Figures 2a and b] confirmed the scintigraphic diagnosis of suprahepatic gallbladder. On MRCP, the axial HASTE [Figure 2a] and coronal TRUFI [Figure 2b] images demonstrated a suprahepatic gallbladder located superior to segment VIII, hypoplasia of the right hepatic lobe with compensatory hypertrophy of the left hepatic lobe, and gross splenomegaly.
Axial HASTE image showing the gallbladder in ectopic suprahepatic position (superior to segment VIII). The liver parenchyma appears nodular and there is associated right hepatic lobe hypoplasia with massive splenomegaly
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F3
A 3.5 M Hz routine abdominal USG was done which revealed an ectopic gallbladder (right subphrenic) with small right hepatic lobe and hypertrophied left hepatic lobe [Figure 3a], which was previously reported as normal [Figure 3b].