Bladder Cancer Markers

Alternate Names

  • BTA (Bladder Tumor Antigen)
  • NMP22 (Nuclear Matrix Protein 22)

There are two bladder cancer tumor markers: bladder tumor antigen (BTA), and nuclear matrix protein 22 (NMP22). Levels are measured in urine, and used to both monitor and diagnose bladder cancer that has recurred following surgery. There may be false positives results for both tumor markers due to the presence of non-cancerous conditions such as STDs (sexually-transmitted diseases), and kidney or bladder stones.

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