CYFRA 21-1 Tumor Marker: Why It Matters in Lung Cancer, Especially Squamous Cell Carcinoma
CYFRA 21-1 Tumor Marker: Why It Matters in Lung Cancer, Especially Squamous Cell Carcinoma Tumor markers play an important supportive role in the diagnosis and follow-up of lung cancer. Among them, CYFRA 21-1 (Cytokeratin 19 fragment) is known for its high specificity in non–small cell lung cancer (NSCLC)—particularly squamous cell carcinoma (SCC). In this article,…