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Benign lymphoepithelial lesion
The smear looks like the one from a lymph node. The lesion is often cystic, in this case the aspirate is fluid. Acinic cells of the surrounding area and proliferative ductal cells are present. The epithelial cells may show osmotic changes: ill defined cytoplasm, larger nucleus which is pale stained. In case of follicular lymphoid proliferation the differentiation from malignant lymphoma may be difficult. The German literature calls it: autoimmune sialoadenitis – it is connected to or is part of the Sjögren Syndrome.
