A 56-year-old chronic smoker, mass in bronchus resected. What is the possible marker-: (A) Cytokeratin, (B) Vimentin, (C) Epithelial membrane Cadherin, (D) Leukocyte
Answer is A. Squamous cell carcinoma is most commonly found in men and is closely correlated with a smoking histoty.
Histologically, it is characterized by keratinization and intracellular bridges.
Cytokeratin is a marker for keratinizing cells.