The lack of specificity of an abnormal findings visualized on a conventional radiocolloid liver imaging remains significant limitation of the examination. The purpose of this investigation is to clarify an equivocal abnormal finding visualized on a conventional liver and spleen imaging by using combination of scintiangiography and histogram as a quantiative assessment. Histo-analysis of peak colloidal distribution in the liver and spleen was undertaken as a complement of conventional liver imaging. The following useful patterns was emerged: 1. In hepatitis, the splenic uptake was slightly higher than in normal group. This change was usually not recognized in conventional imaging. 2. In liver cirrhosis, the liver uptake was markedly low whilst splenic uptake was very high, resulting in splenic shift and very low liver-spleen uptake ratio. 3. In hepatoma, the liver uptake was not definitely changed but splenic uptake was considerably high, so that the liver-spleen uptake ratio w s very low. 4. In liver metastasis, both liver and splenic uptakes were within normal limits and the liver-spleen uptake ratio was not changed.