Primary extramedullary plasmacytoma of the parotid gland: a case report and review of the literature.

Solitary extramedullary plasmacytomas are uncommon malignant neoplasms with a great predilection for the upper respiratory tract. Extramedullary plasmacytoma involving the parotid gland is an extremely rare condition. This report describes the case of a primary extramedullary plasmacytoma arising in the right parotid gland of a 63-year-old man. A review of the literature reveals that this disease has generally a good prognosis. provided that multiple myeloma has been excluded. The treatment of choice should be surgical excision followed by radiotherapy, although from this study there is insufficient evidence to suggest that this is more effective than surgery alone. All patients must have regular long-term follow-up to monitor for recurrence or dissemination, in which event chemotherapy may be considered in addition to the other treatment modalities.