Objective: To investigate the application of Alcian Blue (AB) and cytokeratin (CK) double staining technique in
adenoid cystic carcinoma to improve the staining efficiency. Methods: Twenty-three specimens of adenoid cystic
carcinoma from January 2015 to January 2017 in the Clinical Pathology Department of Zhongshan Ophthalmic
Center, Sun Yat-sen University were stained with AB first and CK then on the same slide. Results: Mucinous
substance showed blue. And the cytoplasm of the cancer cells presented with brown yellow in all the specimens.Conclusion: The method of double staining with AB and CK is stable and displays bright color contrast. It can
effectively reveal the relationship between the mucus and cancer cells. It proves to be more time-saving and
economical than the individual staining of AB and CK respectively.