Introduction Warthins tumor, also known as papillary cystadenoma lymphomatosum, monomorphic adenoma, or adenolymphoma, is a benign cystic tumor of the salivary glands containing abundant lymphocytes and lymph node-like stroma. Ki-67, p53, IgM, OPN, S100, myeloperoxidase, and VEGF by immunohistochemistry. Results Immunohistochemical staining confirmed that the immune cells within the follicles of Warthins tumor were positive… Continue reading Introduction Warthins tumor, also known as papillary cystadenoma lymphomatosum, monomorphic adenoma,