Pseudolesions of left liver lobe during helical CT examinations: prevalence and comparison between unenhanced and biphasic CT findings

Pseudolesions around the falciform ligament are not rarely seen in the routine helical CT examination of liver and abdomen. The pseudolesions are more encountered in the portal phase of helical CT examination. These lesions seem to be likely focal fatty infiltration or perfusion defect due to venous supply variation or both. Nodular shaped pseudolesions may be interpreted as true tumors and further study may require for differential diagnosis.