Benign Lymphoepithelial Lesions of the Salivary Glands

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Abstract
The benign lymphoepithelial lesion of the salivary glands has been labeled with multiple, confusing terms. We recommend the abandonment of the vague term of Mikulicz disease. The histopathologic findings of lymphoid infiltration, intraductal proliferation, epimyoepithelial islands, and acinar atrophy are presented. The relationship between this lesion and autoimmune diseases, including Sjögren syndrome, is noted. Difficulty of histopathologic differentiation between this lesion and malignant lymphoma can occur. The association of the benign lymphoepithelial lesion with the simultaneous presence or future development of lymphoma is discussed.