Tumor markers include 3 types of proteins, glycans, and enzymes, although glycoantigens are one type of tumor marker. Elevated glycoantigens are first considered as a possible cancer. Depending on the type of glycoantigens, initial localization can be done, and active medical consultation and regular review can be done for early detection and treatment of cancer.
Glucose antigen 125 is a major marker of epithelial ovarian tumors. Elevated CA125 can precede the onset of symptoms and can therefore be used to detect early ovarian cancer or to check for recurrence of ovarian cancer after surgery, and as the disease progresses, patients may experience symptoms such as menstrual disorders, fatigue, ovarian pain, and wasting. It is the main treatment option for ovarian cancer.
High glycoantigen 724 often indicates the possibility of gastric cancer, which must be taken seriously. The patient’s past history of chronic gastritis and gastric ulcer can be confirmed by gastroscopic biopsy, and whole-body PET-CT is also needed to clarify whether there are distant metastases.