Presentation of an Extremely Rare Tumor: Nested Stromal-epithelial Tumor of the Liver

Nested stromal-epithelial tumor (NSET) is a very rare mesenchymal liver tumor, which is originated from non-hepato-cyte cells in the liver. NSET has been defined as a non-hepatocytic and non-biliary tumor of the liver with epithelial and spindled cells with associated myofibroblastic stroma and variable intralesional calcification and ossification. It is often seen in young women and can be represented as large masses. This article is aimed to present the clinical and imaging findings of a 77-year-old male patient with a massive NSET including coarse calcification, with literature comparison.