<prompt> Which one of the following marker is useful in differentiating between mesothelioma and adenocarcinoma.CEACytokeratinCalretininTTF  <response>: Calretinin Cytokeratin56. because here only cytokeratin is used not 56Best positive mesothelioma markers - Calretinin, CKS and CK 56.Best positive lung adenocarcinoma markers - TTF 1 and Napsin. 