Extremely Increased Serum Carbohydrate Antigen 19-9 Levels Caused by New or Resistant Infections to Previous Antibiotics in Chronic Lung Diseases.
10.4046/trd.2013.75.3.125
- Author:
Ji Young SHIN
1
;
Su Jin YOO
;
Bo Mi PARK
;
Sung Su JUNG
;
Ju Ock KIM
;
Jeong Eun LEE
Author Information
1. Department of Internal Medicine, Daejeon Veterans Hospital, Daejeon, Korea.
- Publication Type:Case Report
- Keywords:
CA19-9 Antigen;
Infection;
Lung Neoplasms
- MeSH:
Aged;
Anti-Bacterial Agents;
Female;
Humans;
Lung;
Lung Diseases;
Lung Neoplasms;
Mycobacterium avium Complex;
Pseudomonas aeruginosa;
Reference Values;
Respiratory Tract Infections;
Thorax
- From:Tuberculosis and Respiratory Diseases
2013;75(3):125-127
- CountryRepublic of Korea
- Language:English
-
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.
