This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Squamous cell carcinoma marker is- 
Select and explain. 
A. Vimentin, B. Cytokeratin, C. Desmin, D. Myogenin
B: Cytokeratin
Answer: B: Cytokeratin 
Explanation: Harshmohan textbook of pathology 7th edition. *epithelial tumor : immunostains used are pankeratin,epithelial membrane antigen,carcinoembrionic antigen,neuron specific enolase. *mesenchymal tumors: immunostains used are vimentin,desmin,muscle specific actin.