Cytokeratin 19 Fragment High 6.7 may be caused by a tumor or by inflammation.
Cytokeratin 19 fragment is a new tumor marker with high sensitivity and specificity especially for the detection of squamous lung cancer, which is the marker test of choice for squamous lung cancer screening.
Therefore, if the measurement is high in the serum, it indicates a high likelihood of squamous cell carcinoma in the lungs, but it is not absolute. High cytokeratin 19 fragment can also be caused by some benign pathologies such as pneumonia, bronchitis, peptic ulcers and other diseases.
Cytokeratin 19 fragment high 6.7 alone can not accurately determine the cause, but also need to be combined with the characteristics of the medical history, other test results to make an accurate judgment, it is recommended to clarify the cause of the disease under the guidance of a doctor.