Barcelona Criteria

To reduce the main causes of False Positives (FP) in the results of Tumor Markers (TM) in serum, a group of 4 rules have been determined to properly evaluate them, such as:

  1. Tumor Markers Serum concentrations.
  2. Discard benign pathology by the exclusion of main source False Positive results.
  3. Follow-up if Tumor Markers moderate results (Grey Zone/Undetermined).
  4. Technical interference.