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Tuberculosis & Respiratory Diseases

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Vol.75 No.3
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Extremely Increased Serum Carbohydrate Antigen 19-9 Levels Caused by New or Resistant Infections to Previous Antibiotics in Chronic Lung Diseases

Tuberculosis & Respiratory Diseases / Tuberculosis & Respiratory Diseases,
2013, v.75 no.3, pp.125-127






& (2013). Extremely Increased Serum Carbohydrate Antigen 19-9 Levels Caused by New or Resistant Infections to Previous Antibiotics in Chronic Lung Diseases. Tuberculosis & Respiratory Diseases, 75(3), 125-127.
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Abstract

In this paper, we describe 72-year-old female patient without evidence of malignant disease presented with significantly elevated serum carbohydrate antigen (CA) 19-9 levels by respiratory infections. She was diagnosed with respiratory infections due to Mycobacterium avium complex and Pseudomonas aeruginosa. The serum CA 19-9 levels remarkably increased (1,453−5,300 U/mL; reference range, <37 U/mL) by respiratory infection and abruptly decreased (357−534 U/mL) whenever infection was controlled by specific treatments. This case suggests that serum CA 19-9 levels may be used as a diagnostic marker to indicate new or resistant infections to previous antibiotics in chronic lung diseases without significant changes in chest X-ray findings.

keywords
CA19-9 Antigen, Infection, Lung Neoplasms

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