The use of advanced imaging techniques in computed tomography(CT) and magnetic resonance imaging (MRI) has established the appearance of most common liver neoplasms. There are, however, considerable overlaps In the appearances of various pathologic entities on CT and MRI, and certain hepatic lesions can show unusual characteristics that may lead to misinterpretation, so it is important for the radiologist to be aware of these uncommon appearances. The purpose of this article is to illustrate the spectra of uncommon patterns and various diagnostic pitfalls encountered on CT and MRI of liver neoplasms.