title: Malignant lymphoma presenting as a parotid mass.
abstract: Primary malignant lymphomas of the salivary glands are very rare. Three cases of diffuse B-cell malignant lymphomas, each developing as a parotid mass, were presented. The preoperative early diagnosis is essential in these cases to avoid an unnecessary radical procedure as well as to have a beneficial effect on the prognosis. If there were a possibility of malignant lymphoma, present authors stressed that an incisional biopsy should be performed for diagnosis. The usefulness of immunopathological diagnosis of these tumors has been discussed with regards to the prognosis.
mesh_terms: D000368:Aged; D001402:B-Lymphocytes; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis* / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000473:pathology