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Diffuse liver uptake of Tc-99m phosphate compound associated with intravenous injection of iron colloid solution.

Presented are two cases that show a diffuse liver uptake on bone scintigraphy using Tc-99m HMDP following an intravenous injections of iron colloid solution. Although the true mechanism of this phenomenon is unknown, it seems that a Tc-99m iron colloid complex was formed and taken up in Kupffer cells of liver