This article reviews the CT imaging features of the most frequent mesenchym
al tumors of the pancreas and stresses important distinctive patterns that
may help distinguish specific entities. Various neoplasms (lymphangioma, li
poma, teratoma, pancreatoblastoma, schwannoma, neurofibroma, lymphoma, and
sarcoma) are reviewed, with key differential points (structure, fatty and w
ater densities, calcification, pattern of contrast enhancement, vasculariza
tion, and necrotic or regressive changes) emphasized. In addition, epitheli
al tumors are considered in the differential diagnosis.