A case of amyloidosis associated with a solitary micromolecular plasmocytoma

: Amyloidosis associated with myeloma and its current classification are examined. The clinical example is reported of a patient with isolated micromolecular plasmocytoma in whom the amyloidosis appeared during the remission of the primary disease. The patient was not seen until a late stage when he was admitted to hospital with severe cardiac decompensation. Echocardiography revealed the location to be the cardiac muscle. The increase in left ventricular mass revealed by the ECG was in contrast with the low ECG voltages. Biopsy showed involvement of the oral cavity. The condition resisted all treatment and the patient died a few months after the onset of the amyloidosis. The view that amyloidosis associated with plasma cell dyscrasias should be classified with primary amyloidosis is supported.