AN UNUSUAL CASE OF METASTATIC INTRACARDIAC PLASMACYTOMA

The authors report the case of a 36-year-old male who, following inves tigations for dyspnea, othopnea and peripheral cyanosis, was found to have metastatic intracardiac plasmacytoma. Diagnosis was made initiall y with transesophageal echocardiography and emergent cardiac surgery w as performed. Postoperative transthoracic and transesophageal echocard iograms revealed residual masses in the right and left atrium. The pat ient was subsequently treated with systemic chemotherapy and was sympt om-free within three months of treatment, with rapid decline of parapr oteins in the serum and urine. This case of intracardiac metastatic pl asmacytoma is deemed unique because cardiac involvement with multiple myeloma has not been studied in detail, largely due to the rarity of s uch a presentation.