Although cancers of ovaries, cervix and uterus are regarded as difficult and expensive for the detection at an early stage [13], [14], [15], [16], the method with the use of MBL-AJ has allowed identifying statistically reliable differences between the levels of the lectin-binding CEA between healthy women and patients with cervical cancer, and between patients with benign and malignant neoplasm [13]. The gene discussed is CEACAM5; the disease is cervical cancer.