Serum levels of markers - mucinoid associated antigen (MAA), carcinoem
bryonal antigen (CEA) and carbohydrate antigen (CA-19-9) were measured
in 78 breast cancer patients using enzyme immunoassay. It was found t
hat MAA was most reliable of the above markers in staging breast cance
r. A combined study of the latter is advisable in determination of bre
ast cancer dissemination, in the control over the disease course and p
rognosis.