died of tumor. Five retroperitoneal tumors dedifferentiated but did not metastasize. In light of this experience, we believe that the term "atypical lipoma" is warranted for the DFT-S and "well ...

Cysts that contain thick fluid with mucin, elevated CEA, or atypical cells must be treated as potentially malignant and should be surgically removed. Mucinous cystic neoplasms (MCNs) encompass a ...