Undifferentiated carcinoma with osteoclast-like giant cells of the pancreas mimicking a predominantly calcified mass: Case report and literature review

Abstract

Undifferentiated carcinoma with osteoclast-like giant cells (UCOGCs) of the pancreas is a rareneoplasm that contains osteoclast-like giant cells, which are morphologically identical to thoseseen in giant cell tumors of bones. Histopathologically, it is composed of round to spindleshapedneoplastic cells and non-neoplastic histiocytic giant cells. Although only limited radiologicfindings are available due to the rarity of this tumor, UCOGCs shows variable imaging featuresin the literature from an inhomogeneous solid mass to a multilocular cystic tumor.Herein, we report an unusual manifestation of UCOGCs of the pancreas mimicking a predominantlycalcified mass with radiologic-pathologic correlation. Copyrights © 2019 The Korean Society of Radiology.