Emergency blood pool scintigraphy in fresh-blood-aspirated focal liver disease.

Emergency blood pool scintigraphy was performed in a patient clinically diagnosed as having a liver abscess, in whom percutaneous drainage revealed that the lesion containing fresh blood. 99mTc-RBC images 18 h after the injection showed only patchy activity in the lesion, therefore, we considered there was no communication between the lesion and the circulating blood. Drainage of the lesion was performed again and the abscess with a blood clot was drained.