MALIGNANT PLASMACYTOMA APPEARING AS INVASIVE PARANASAL SINUS DISEASE AFTER CARDIAC TRANSPLANTATION

Invasive plasmacytoma appearing as a mass in the paranasal sinuses dev eloped in two patients after cardiac transplantation. Radiographic fin dings included a sinus mass with bony invasion and expansion. The find ings were radiographically indistinguishable from common malignant neo plasms and aggressive infectious processes. Malignant plasmacytoma sho uld be considered in the differential diagnosis of invasive paranasal sinus masses in chronically immunosuppressed patients.