ObjectiveTo discuss the CT manifestation and clinical significance of rare neoplasm in maxillary sinus, includingmalignant myoepithelioma, angioendothelioma, sarcoma of plasmacyte.
MGUS is asymptomatic, but can progress to cancer, specifically multiple myeloma, lymphoplasmicytic lymphoma, formerly called Waldenstrom's macroglobulinemia, or solitary plasmacytoma at a rate of 1% per year.