title: Predictive value of serial carcinoembryonic antigen levels in long-term follow-up of ovarian cancer.
abstract: The predictive value of serial levels of carcinoembryonic antigen (CEA) in tumor monitoring was examined in 213 patients with ovarian cancer; each patient had been followed-up at monthly intervals for at least 12 months. CEA was not detectable throughout the period of observation in 35% of the patients. In general. patterns showing a disappearance of CEA or persistently low levels were associated with a good prognosis, whereas those showing a reappearance or highly elevated and rising levels were associated with a poor prognosis. A transient reappearance of CEA was observed in 10 patients; this did not appear to be associated with tumor recurrence or progression. "False positive" results were obtained in 6 patients in whom no tumor has been clinically detectable to date. "False negative" results were obtained in 4 patients with obvious tumor progression. In terms of a good or poor prognosis, the use of CEA levels was highly accurate in patients with minimal or no residual disease (97% and 89%, respectively); the rate fell to 62% in patients with extensive disease. As the clinical significance and limitations become better known, serial CEA levels should contribute substantially to the monitoring of patients with ovarian cancer.
mesh_terms: D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000097:blood* / Q000175:diagnosis / Q000628:therapy; D011379:Prognosis; D012008:Recurrence; D012075:Remission, Spontaneous; D013997:Time Factors
chemical_list: D002272:Carcinoembryonic Antigen