Background The roles of carcinoembryonic antigen (CEA), cytokeratin 19 fragments
(CYFRA21-1) and neuron-specific enolase (NSE) in metastases occurrence and poor …

Purpose: To determine pretreatment serum CYFRA21-1 levels as indicators of poor
prognosis in patients with non-small cell lung cancer (NSCLC). Methods: 1,202 consecutive …

Purpose: The aim of this prospective study was to assess the prognostic impact of serum
tumor markers (Cyfra21-1, carcinoembryonic antigen, neuron-specific enolase, squamous …

Background: Cytokeratins are epithelial markers whose expression is not lost during
malignant transformation. Cyfra 21-1 is a cytokeratin-19 fragment that is soluble in serum …

Objective: To assess the value of Cyfra 21-1, carcino-embryonic antigen (CEA) and neuron-
specific enolase (NSE) combined, all three together as prognostic factors in advanced stage …

Aim: To evaluate serum soluble fragments of cytokeratin 19 (ie, CYFRA21-1) as a tumor
marker for patients with squamous cell lung carcinoma (SCLC) and oropharynx squamous …

Background: Finding a suitable marker with high sensitivity and specificity for early
diagnosis of cancer is very desirable. This study was aimed to determine the diagnostic …

Cyfra 21-1 is a tumor marker based on the determination of water-soluble cytokeratin 19
which is secreted by normal or malignantly transformed epithelial cells. It is suggested to be …

Abstract Background: Carcinoembryonic antigen (CEA), squamous cell carcinoma antigen
(SCC-Ag), and CYFRA 21-1 are the most useful markers for non-small cell lung cancer …

The aim of this study was to investigate the clinical value of serum cytokeratin 19 fragment
(CYFRA21-1) and carcinoembryonic antigen (CEA) in the prediction of chemotherapy …