A 56 year old Chronic smoker, mass in bronchus resected. Most useful immunohistochemical marker to make a proper diagnosis would be –
Correct Answer: Cytokeratin
Description: Mass in bronchus in an old chronic smoker suggest bronchogenic carcinoma. The marker of carcinoma, on immunohistochemistry, is cytokeratin.
Other epithelial markers for carcinoma are :-
Epithelial membrane antigen (EMA):- Breast, lung and Kidney's adenocarcinoma.
Carcino-embryonic antigen: - Carcinomas of GIT, pancreas, lung, breast, uterus and ovary.
Category:
Pathology
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