Carcinoma of pancreas simulating giant cell tumor of bone. Electron-microscopic evidence of its acinar cell origin

Two cases of a previously undescribed tumor were studied. The lesion is a primary pancreatic neoplasm, which by light microscopy has an appearance indistinguishable from that of a giant cell tumor of bone. Electron microscopy was done in one of the two cases. Both giant and “stromal” cells have abun... View More