Objective To highlight the characteristics of Idiopathic pulmonary fibrosis(IPF) with marked elevated serum carbohydrate antigen sialyl Lewis(a)(CA19-9).
Its ligand is sialyl Louis oligosaccharides or similar molecular structure, and expresses in neutrophils, eosinophils and normal bone marrow precursor cells.
The level of sialyl SSEA 1 antigen was associated with disease course and prognosis, sialyl SSEA 1 antigen might be an useful marker for monitoring of ovarian cancer.