Cytokeratin 19 is a subunit of cytokeratin intermediate filament expressed in simple epithelia and their malignant counterparts. Therefore, it is expressed by respiratory epithelium cells and has been detected in lung cancer specimens. An immunoradiometric assay was used to detect a fragment of the cytokeratin 19, referred to as CYFRA 21-1, in the serum of 165 patients with histologically prove...

The role of tumour marker assays in differentiating malignant from benign pleural effusions is not yet clear. This study was designed to prospectively assess the individual and combined diagnostic utility of three tumour markers in patients with pleural effusion. Pleural and serum levels of carcinoembryonic antigen (CEA), carbohydrate antigen 15-3 (CA 15-3) and cytokeratin 19 fragment (CYFRA 21...

PURPOSE This study investigated the preoperative serum levels of CYFRA 21-1 and CEA as prognostic factors in patients with stage I non-small cell lung cancer. SUBJECTS This study evaluated 341 patients who had undergone a complete resection for stage I NSCLC between 2002 and 2008. RESULTS The patients included 193 males and 148 females. The mean age of the patients was 69.2 years (range: 19...

BACKGROUND Patients with pathological stage I pulmonary adenocarcinoma have different postoperative prognosis. The aim of this study is to evaluate the prognostic significance of preoperative and postoperative serum levels of carcinoembryonic antigen (CEA) and CYFRA 21-1 in patients with pathological stage I pulmonary adenocarcinoma. MATERIAL AND METHODS We retrospectively reviewed the data o...

Introduction: Cyfra 21 is a serum-soluble fragment of cytokeratin19. Increased Cyfra 21 serum levels and their benefit as a tumor marker have been shown in some malignancies. This study aimed to evaluate the serum levels of Cyfra 21 in patients with benign and malignant salivary gland tumors. Materials and Methods: In this cross-sectional study, the serum level of Cyfra 21 in 44 patients with m...

OBJECTIVE This study was conducted to evaluate the relationship between the lymph node status and tumor marker status in patients with histologically confirmed head and neck cancer. MATERIALS AND METHODS 134 patients were included in this retrospective analysis. 33/134 were classified as NO and 101/134 as N+. The wall of the lymph node was ruptured by the metastasis in 70/134 patients (poor p...

OBJECTIVES Our objective was to test the prognostic importance of both the pretreatment level and change in serum CYFRA 21-1 after one cycle of chemotherapy in patients with advanced non-small cell lung cancer (NSCLC) and to compare these two CYFRA variables to routine clinical stage and response as measured by imaging. PATIENTS AND METHODS Our patients consisted of 58 with advanced NSCLC who...

Lung cancer is the leading cause of cancer related deaths. Despite the modern diagnostic and therapeutic advances, 5-year survival rate of all cases of lung cancer does not exceed 15%. Therefore, sensitive tumor biomarkers are needed for the early detection and differential diagnosis of lung cancer. The aim of the study was to evaluate the diagnostic efficiency of HE4 (Human epididymis protein ...