A Case of Primary Malignant Lymphoma of the Parotid Gland

ABSTRACT

The malignant lymphoma originating in the parotid gland is relatively rare, constituting 0.3% of all reported malignancies. Malignant lymphoma is a neoplastic proliferation of cell in the lymphoreticular system and devided as Hodgkin's disease and non-Hodgkin's lymphoma. Non-Hodgkin's lymphoma occurs primarily in lymph nodes and is rarely found in extralymphatic organs. In general, malignant lymphoma originating in the parotid gland is histologically described as non- Hodgkin's lymphoma, frequently belongs to the B-cell type and rarely relapses into other sites. Recently, we have experienced a malignant lymphoma in the left parotid gland. It was diffuse large B-cell type, stage I. In the imaging examination, exhibited homogeneity of the tumor. It was well defined margin and no infiltration into the adjacent tissue. The patient underwent superficial parotidectomy and combination chemotherapy with CHOP-regimen. He have been followed for 6 months and no relapse occurred. We report this case with a brief review of literature.