ACTIVITY OF CANCER PROCOAGULANT (CP) IN SERUM OF PATIENTS WITH CANCEROF LUNG, BREAST, ESOPHAGUS AND COLORECTUM

Activity of cancer procoagulant (CP) was studied in blood serum of 90 patients with cancer of lung, breast, oesophagus and colorectum, and o f 15 healthy people. The activity of CP was determined by the coagulat ion method. Sera of patients with cancer showed higher mean activity o f CP than sera of healthy control. Of the 90 cancer patients 78 were i dentified correctly by this test as having cancer (sensitivity 85%). I n the case of lung and colorectal cancers the higher CP activity was o bserved the more advanced was the clinical stage of cancer, and the te st was positive in 100%. After radical removal of malignant tumor of l ung, decreased CP activity was found.