Cytokeratin 19 (CK19) is low‐molecular weight CK with widespread expression in various malignancies including those of lung, colon, and breast. Occasional studies have also indicated prognostic utility of CK19 in… Click to show full abstract
Cytokeratin 19 (CK19) is low‐molecular weight CK with widespread expression in various malignancies including those of lung, colon, and breast. Occasional studies have also indicated prognostic utility of CK19 in nonsmall cell lung carcinomas, with better prognosis among squamous cell carcinoma cases with strong CK19 immunostaining. The aim of this study was to evaluate the expression and potential roles of CK19 immunostaining in cases of carcinoma lung as well as other metastatic intrathoracic neoplasms.
               
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