Fig. 6From: Thymic lymphoid hyperplasia with multilocular thymic cysts diagnosed before the Sjögren syndrome diagnosisImmunohistochemical findings of the epithelial marker. Immunohistochemistry of cytokeratin AE1/AE3 highlights the organized network of the thymic medullary epithelium surrounding hyperplastic lymphoid tissue. No epithelial proliferation is seen in the nodular lymphoid tissueBack to article page