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A Case of Non Hodgkin’s Lymphoma of Parotid Gland

About 20% of non-Hodgkin’ lymphoma occur in the extra-nodal region in the head and neck area and more than half of extra-nodal lymphoma in the head and neck area involves the Waldeyer’ ring. Malignant lym-phoma arising in the parotid glands are relatively rare, although 90% of all salivary gland lymphomas, appear in parotid gland and are classified as extranodal non Hodgkin’ lymphoma. We experienced one rare case of non-Hodgkin’ lymphoma in the right parotid gland, with a painless swelling of the cheek region as the chief complaint. We treated with CHOP(cyclophosphamide, 750mg/m 2 i.v. day1；doxorubicin, 50mg/m 2 i.v. day 1；vincristine, 1.4mg/m 2 i.v. day 1;prednisone, 50mg/m 2 orally days 1 to 5. repeat every 21 days) and Rituxi-mab combination therapy. We aimed to report here one case of non-Hodgkin’ lymphoma in the right parotid gland with review of literature.