Non-Hodgkin lymphoma of the parotid gland: diagnosis, evaluation, and treatment.

Malignant lymphoma of the parotid gland not infrequently presents as a solitary mass indistinguishable from other commonly occurring lesions. Two new cases are presented here with a comprehensive literature review. When encountered, the lesion should be excised with the superficial lobe of the gland. If it is within the deep lobe, the tumor should also be excised with preservation of the facial nerve. Recommendations for further evaluation and treatment are given.